Vortec 062 Heads Specs750) reach, small (5/8") spark plug socket. com: New Replacement Vortec Cylinder Heads GM Marine 5. so here's the break down again stock 062 head with no margin of error measurements. The Vortec head is a bit of an offshoot from the traditional small-block Chevy head. 600" stocker rocker arm max lift. PAIR OF GM CHEVY 350 VORTEC #906/062 CYLINDER HEADS. Vortec Heads Reader Identification Guide. The 906 heads with the Inconel seat were from the 3/4 and 1-ton HD applications, the idea being the wide, single-angle seat made from Inconel would withstand prolonged towing up grades. These are great heads, I wouldn't hesitate to use them,. The new Mexican castings are good, thick heads and can be flat cut to the mid 50’s. 60 Stainless Steel ONE piece Exhaust valves. NEW PAIR of aftermarket GM CHEVY VORTEC 350 V8 5. COMPATIBLE VEHICLES Part#: ALL-AHS3031 Condition: Remanufactured - Exceeds OEM Specifications Manufacturer: Chevrolet Year Range: 96-99 Engine Size: 5. The "062" version has three triangles on the front to identify it. 7 rods Hyperneutectic Pistons (SUM-17350-30) GM Vortec Heads 062 Casting (previously. There are two variations to look for; casting numbers 12558062 and. 500 inches Straight Spark Plugs Cylinder heads are assembled in United States JJ Original Equipment 90-day (Unlimited Miles) Remanufactured Cylinder Head Warranty. 24 PMI chrome moly retainersPMI beehive. Specs : Combustion Chamber Volume: 64cc Intake Port Volume: 170cc Exhaust Port Volume: 87cc Intake Valve Diameter: 1. Description Reviews (0) Description NEW AFTERMARKET CAST IRON GM CHEVY PERFORMANCE 302-350 906 VORTEC CYLINDER HEADS. 5" dual exhaust GMPP hyd flat tappet Camshaft Cam specs:. 50-inch valve sizes and a compact 64cc chamber. PAIR CHEVY GM 350 906 062 V8 VORTEC CAST IRON CYLINDER HEADS. These cylinder heads are ideal for applications up to 350 horsepower, but they require Vortec-specific intake manifolds. Steel rings inserted onto exhaust seats (3 angle). R42LTS - Stock and a good place to start. Generally the 906 is considered to be a lower flowing exhaust port design, but this is only a consideration for a flat out, total performance motor and to get either of the P/N --060 Vortec heads to that point takes a lot of work to the spring pockets, valve guides, stem seals, roller rockers, beehive springs, screw in studs, steel push rod guid. The L31 Vortec comes in two different casting numbers, 10239906 (#906) or 12558062 (#062). America's favorite high-performance cast iron small block cylinder heads offer big power and bigger value. 7 VORTEC Cylinder Head CAST# 906 062. new 2 gm chevy vortec 350 5. It demands its own, specific intake manifold and features smaller 1. 02 STAINLESS VALVES 906 062 1996 – 2000. Description: 96-99 Chevy 350 5. The 062 Vortec heads are generally considered to be the better performer. Product Details VORTEC CYLINDER HEADS An easy way to gain 20-40 horsepower on any 1955-and-newer Small-Block Chevrolet V-8 (except later-style LT1/LT4 engines with reverse-flow cooling) is by installing a set of Vortec cylinder heads. How To Identify SBC Cylinder Heads. New Replacement Vortec Cylinder Heads GM Marine …. Initially, there were two versions of the #906 casting head. Joined Nov 17, 2004 271 Posts Discussion Starter · #1 · May 30, 2007 I’m putting together a sbc for my 1971 Nova and wanted your guys advice on a cam. These production Vortec heads were used in the new Vortec 350ci engine intended for -, -, and 1-ton Chevy pickups. Originally, the stock #906 casting head was available in two versions. 02 STAINLESS VALVES 906 062 1996 - 2000 185 CC intake runners 64 CC combustion chambers Heads are assembled with NEW 2. 560 , but you need to check seal to retainer clearance !), good for flat tappet cams or mild hyd rollers. Requires Vortec-specific intake manifold. includes: please let us know your cam card specs, and if your rockers are 1. The L31 Vortec used two castings 12558062 which you have uses induction hardened exhaust valve seats for unleaded fuel. The L31 Vortec was available in two casting numbers: 10239906 (#906) and 12558062 (#062). Summit Racing™ Vortec Cylinder Heads. They not only out flow but also out burn the older heads. Responds well to porting and larger 2. Cast Iron Vortec Cylinder Head Assembly. GM CHEVY 350 VORTEC #906 062 CYLINDER HEAD. 50-inch valve head performed. I work on these heads regularly and about the only differences are most of the 906 heads have hardened seat inserts in the exhaust. PAIR CHEVY GM 350 906 062 V8 VORTEC CAST …. Cylinder Head, Vortec, Cast Iron, Assembled, 67cc Chamber, 175cc Intake Runner, Chevy, Small Block, Each. 500" cylinder pressure area, and it was also because of. Vortec head bolt and intake bolt torque. Popular Gen I Cylinder Heads. •Vortec heads require a Vortec style 8-bolt intake. I'm thinking of picking up one of these two comp cam/lifter sets for the boat. this head fits model years 02-04. The 906 heads with the Inconel seat were from the 3/4 and 1-ton HD applications, the idea being the wide, single-angle seat made from Inconel would withstand prolonged towing up grades. The 062 does flow slightly better on the exhaust side at low lifts but the advantage over a 906 is very slight. Vortec heads torque specs. Other than that, the #906 is the same as the #062 head. vortec heads 906's or 062's. VORTEC HEADS HAVE A DIFFERENT INTAKE BOLT ANGLE ON SOME BOLT LOCATIONS. A turbo 350 is almost a simple bolt in. This range is due to production line machining and casting variance. • Uses bare head 12529093. Promaxx Maxx Series 183cc heads vs Vortec 062 heads ">Promaxx Maxx Series 183cc heads vs Vortec 062 heads. Valve Spring Kit for SB Chevy Vortec. •Maximum valve lift on Vortec cylinder heads is. VORTEC HEADS HAVE A DIFFERENT INTAKE BOLT ANGLE ON SOME BOLT LOCATIONS. But these aren't your grandpa's camel hump heads and here is why! There are two variations to look for; casting numbers 12558062 and 10239906. Text descriptions of the heads can also find text descriptions for each head type under the respective headings. Drop in (this means no machining) beehive spring kit for GM Vortec heads 906/062. Lobe ID#'s: 5443 / 5203 Intake Centerline: 106° Engine Type: Chevrolet 350 Small Block Bore: 4. This is mainly due to the larger exhaust valves, which allow for improved exhaust flow and better scavenging. Vortec Cylinder Heads: The Definitive Guide. 10212808 Valve Spring Retainers. The other 906 heads are as the 062 Vortecs, 3-angle grinds on both the intake and exhausts. VORTEC HEADS YOULL FIND IN SALVAGE YARDS HAVE THESE HEAD MARKINGS. 7L V8 SBC 062/906 Vortec Cylinder Head. Vortec heads torque specs. 15cc Intake Port Volume: 200cc Exhaust. The good head bad head thing was started many years ago by an article in Car Craft magazine. Vortec 062 heads (NO mods) Felpro 1094 Head Gaskets Howard Z28 Springs p/n 98214 Edelbrock aluminium Performer EPS Vortec Intake HEI Distributer Hedmann 1 5/8 primary longtube headers w/3" collectors Flowmaster 2. • Uses bare head 12529093. 7 VORTEC Cylinder Head CAST# 906 062. Exhaust: 1 5/8" Headers Max Torque: 413 ft*lbs @ 3800 RPM Max Power: 342 HP @ 5000 RPM. 9:1cr w/ hypereutectic pistons, stock rods and crank, comp cams 282 magnum solid flat tappet, Eddy performer intake, Holley 750 dp ultra tuned by Davinci carbs in Houston, headman headers. New Replacement Vortec Cylinder Heads GM Marine 5. Small Block Vortec Cylinder Heads. i know a few running these heads on street/strip cars on pump gas best results running 29 to 32 degrees total. Boat has factory manifolds and corsa captain call exhaust. Vortec heads were designed based on the 1996 Caprice 9C1/Impala SS LT1 cast-iron head castings. ProMaxx Performance designed/developed this cylinder head from from the GM 906-062 Vortec factory casting. turbo 400 or 700r4 will need the X member moved back. 7L V8 SBC 062/906. 02 stainless valve 906 062. fits 1996 and up INCLUDES: 64cc COMBUSTION CHAMBER 185cc INTAKE RUNNERS 2. NEW PAIR of aftermarket GM CHEVY VORTEC 350 V8 5. 030 bore) Stock 350 crank Stock 5. 7 OHV CAST IRON PERFORMANCE CYLINDER HEADS 2. 7L - 350ci - V8 Description: 96-99 Chevy 350 5. The cast-iron Vortec heads offer a 170cc LT1-derived port, making them great performance pieces for street engines when tons of torque is key. As the displacement of the engine increases, the. Summit Racing™ Vortec Cylinder Heads. The only difference between the #062 and #906 Vortec head is in the exhaust seat of the HD/1-ton truck #906 version, as described above. Product Details ALUMINUM FAST BURN HEADS Chevrolet Performance’s Fast Burn 23-degree cylinder heads deliver maximum performance for Small-Block engines. Cast-iron Vortec Cylinder Head Assembly. Summit Racing™ Vortec Cylinder Heads SUM. "The L31 Vortec comes in two different casting numbers, 10239906 (#906). bottom retainer to top of seal-. 906 VS 062 vortec heads! Heres the. For the record, I've probably read every Vortec Head thread on this board and the Z28 board. CNC-Machined Combustion Chamber: No. 113 L98 aluminum is another good one for a 327. The #062 has a 3-angle grind on a standard induction-hardened seat, as does the non-HD #906 head. 7 OHV CAST IRON PERFORMANCE CYLINDER HEADS 2. deal L-31 062's 906's A 64cc 083 head from a L98 350 TPI motor can work real well. Refurb Vortec 062 heads and new stock springs - good to. 25:1 Heads: Dart S/R Intake: Edelbrock Performer Carburetor: Holley #3310 Vac. 125" Beehive Spring? - No High Perf Replacement Spring? -Yes. The Vortec head illustrates what Chevy engineers learned about constructing a more efficient chamber where the walls are not as steep, and the heart shape pushes the combustion activity toward the exhaust side of the chamber. 7L V8 SBC 062/906 Vortec Cylinder Head Gasket Set The cylinder head gasket set included in this listing will fit the vehicles listed below. Clearwater Cylinder Head - Complete 5. The only difference between the #062 and #906 Vortec head is in the exhaust seat of the HD/1-ton truck #906 version, as described above. 7 VORTEC Cylinder Head CAST# 906 062 Next Head Gasket Set 2. 520-550 clearance, springs are good to. This smaller chamber helps add power by adding compression. The factory specs are 132in/lb for the intake to head & 88in/lb for the upper in steps,,, 27/106/132, 44/88 The heads are 22ft/lb first Short 55° Med 65° Long 75° The pattern is the traditional from the center out of all SB engines Reusing the stock head bolts is is fine (see below) From AERA Cylinder Head Installation On. Description: 96-02 Chevy 350 5. MACHINING VORTEC HEADS, and OTHER HEADS. May 12, 2023. these heads are sold as a pair. Cast-iron Vortec Cylinder Head Assembly. Generally the 906 is considered to be a lower flowing exhaust port design, but this is only a consideration for a flat out, total performance motor and to get either of the P/N --060 Vortec heads to that point takes a lot of work to the spring pockets, valve guides, stem seals, roller rockers, beehive springs, screw in studs, steel push rod guid. Initially, there were two versions of the #906 casting head. L-31 Vortec cylinder heads' installation in GM trucks and vans' 350 engines was between 1996 and 2000. Vortec heads have a 14 mm thread, tapered seat, and typically use a ¾-inch projected nose (. NEW 2 GM CHEVY VORTEC 350 5. The Vortec heads are a little bit lighter than the older heads and have a “kidney” or “heart” shaped combustion chamber. The other 906 heads are as the 062 Vortecs, 3-angle grinds on both the intake and exhausts. so here's the break down again stock 062 head with no margin of error measurements. 490" bottom retainer top of guide-. Specs : Combustion Chamber Volume: 64cc Intake Port Volume: 170cc Exhaust Port Volume: 87cc Intake Valve Diameter: 1. Sure, rebuilding factory cast iron heads is expensive and partially what made the Vortec head a popular choice in the first place. 7L 350 Vortec Cylinder Heads - Stainless Steel Valves & Springs - New Aftermarket. 460 exhaust 222 intake / 222 exhaust duration at. 940 inches Exhaust Valve Diameter: 1. It is highly recommended to check for clearance on anything over. NEW PAIR of aftermarket GM CHEVY VORTEC 350 V8 5. I'm looking for some help to make sure everything is right before I reassemble. Modern valve covers Modern chamber/ spark plug location, hardened ex seats. COMPATIBLE VEHICLES Part#: ALL-AHS3031 Condition: Remanufactured - Exceeds OEM Specifications Manufacturer: Chevrolet Year Range: 96-99 Engine Size: 5. He is the master getting those heads to run in the 11's. The #062 has a 3-angle grind on a standard induction-hardened seat, as does the non-HD #906 head. Always use the specification card included with your kit. 475" lift require machining valve guide bosses and checking valve seal to valve spring retainer clearance. Requires Vortec-specific intake manifold. Specifications: 906 Vortec Head: 062 Vortec Head: Performance Low Power Potentiality. 906 VS 062 vortec heads! Heres the difference and what you can do to make more HP!See my other videos for more about porting and flow data! *New* For vortec. "The L31 Vortec comes in two different casting numbers, 10239906 (#906) or 12558062 (#062). Each kit comes with it's own installed height specification card. Amazingly, this mundane, production-based 1. Chevy Vortec Cast Iron Small Block Cylinder Heads. i know a few running these heads on street/strip cars on pump gas best results running 29 to 32 degrees total. The Vortec head is a bit of an offshoot from the traditional small-block Chevy head. This head was made thicker than. THESE HEADS ARE SOLD AS A PAIR. Uses bare head P/N 12529093. Cylinder Head Material: Cast iron Intake Port Shape: Rectangular Intake Valve Diameter (in. vinniekq2. new aftermarket cast iron gm chevy performance 302-350 906 vortec cylinder heads. MAY FIT OTHER SBC HEADS,. GM Vortec 706 Heads: A Buget. Vital Specs for 706, 852, and 862 Castings 1999+ LM7 5. Cylinder heads are assembled in United States. 560 lift max (depending on seal thickness, most sets I check have. Vortec Spring Kit 062/906. SBC 327 with Vortec heads. The Vortec head illustrates what Chevy engineers learned about constructing a more efficient chamber where the walls are not as steep, and the heart shape pushes the combustion activity toward the exhaust side of the chamber. LARGE-PORT VORTEC BOWTIE HEAD ASSEMBLY Completely assembled, ready to bolt-on Airflow (281 cfm @ 0. The 062 Vortec heads are generally considered to be the better performer. 600") 225-cc intake ports 77-cc exhaust ports 65-cc combustion chambers P/N 1470 exhaust gasket (minor trimming may be necessary) Bare head P/N 19331473, available separately Bring Us Your Talent. ProMaxx Performance designed/developed this cylinder head from from the GM 906-062. Vortec 062 heads thought I would share some measurements. gm chevy 350 vortec #906 062 cylinder head. Specifications: 906 Vortec Head: 062 Vortec Head: Performance Low Power Potentiality. LARGE-PORT VORTEC BOWTIE HEAD ASSEMBLY Completely assembled, ready to bolt-on Airflow (281 cfm @ 0. 02 STAINLESS VALVES 906 062 1996 – 2000. These cylinder heads are ideal for applications up to 350 horsepower, but they require Vortec-specific intake manifolds. The only difference is the water jacket revision so these heads could be used on conventionally-cooled small blocks. Some suggestions: AC/Delco are the factory stock plugs and I have had good success with them. Specs : Combustion Chamber Volume: 64cc Intake Port Volume: 170cc Exhaust Port Volume: 87cc Intake Valve Diameter: 1. Vortec 062's 406 w/hyd. Other specs: The engine is. Vortec Heads can be mildly ported for additional performance and milled up to. This Cylinder Head has a core charge of $50. THIS HEAD IS COMPLETE WITH VALVES AND SPRINGS. These heads are assembled with the following components:. 7 OHV CAST IRON PERFORMANCE CYLINDER HEADS 2. Best Cam to run w/ stock 062 Vortecs w/NO mods. See More Specifications | Check the Fit. so here's the break down again stock 062 head with no margin of error. The other version was the traditional three angle valve grind. this head is complete with valves and springs. CHEVROLET 1500 PICKUP 96-99 CHEVROLET 2500 PICKUP 96-99. VORTEC BOWTIE CYLINDER HEADS. The L31 Vortec was available in two casting numbers: 10239906 (#906) and 12558062 (#062). 9 V6 NEW Cylinder Head 1986 - 92 86TM Next NEW COMPLETE Chevy 350 5. Product Details VORTEC CYLINDER HEADS An easy way to gain 20-40 horsepower on any 1955-and-newer Small-Block Chevrolet V-8 (except later-style LT1/LT4 engines with reverse-flow cooling) is by installing a set of Vortec cylinder heads. I have a Vortec 350 with Iron Vortec heads (062 casting). The L31 Vortec used two castings 12558062 which you have uses induction hardened exhaust valve seats for unleaded fuel. It is fairly healthy but I was wanting a bit more. This is a cast iron direct bolt on replacement for your 906 -062 engine. Rebuilding Junkyard SBC Vortec Cylinder Heads. 8-liter Material: Aluminum Part Number: 12559862/12561706 Combustion Chamber Volume: 61. America's favorite high-performance cast iron small block cylinder heads offer big power and bigger value. 90 FEATURES: New manufactured after market unused gas cylinder head. GM Performance Parts Bowtie Vortecs are offered in “small port” (#25534351), which has 185cc intake ports/65cc exhaust ports, or the “large port” (#25534445), which features 225cc intake ports/77cc exhaust ports. greasemonkeychef Discussion Starter. Each kit comes with it's own installed height specification card. my own experience with afr heads on my nova, on the chassis dyno, i picked up an average of 10hp and 10 ft lbs at the wheels by going from 36 down to 32 degrees total. The 062 Vortec heads are generally considered to be the better performer. Small Block Vortec Cylinder Heads Specifications - Heads. a 350 horse 327 is not a tough job at all,its just not a very good match for the powerglide and street use in a heavy car. MAY FIT OTHER SBC HEADS,. 510 lift specs and 208/221-degree duration specs. 02 Stainless Steel ONE piece Intake valves Heads are assembled with NEW 1. a 350 or 375 HP 327 with a 3 spd or better a 4 spd auto is great and easy. Cylinder Head Material: Cast iron Intake Port Shape: Rectangular Intake Valve Diameter (in. Vortec intake manifold three-step torque specs: 2 lb. 480" Displacement: 356ci Compression: 9. This charge is FULLY REFUNDED upon return. These cylinder heads are ideal for applications up to 350 horsepower, but they require Vortec-specific intake manifolds. Go to the dragstrip and make timed runs at 30, 32, 34, 36, 38 degrees until the maximum speed is achieved then use that as your best timing. Jeff Swisher is the man to ask on those 305 heads. OEM specifications. These giant heads, made of iron, increased the power and torque of these motors by orders of magnitude. Heads are complete with new valves and springs , they have been professionally assembled by our in house staff and are ready to bolt on right out of the box. Part # : 10239906 , also fits 062 , 12558062 ; 12558060 ; 3857663 ; 938-8M0115137; 803860T. Condition: Remanufactured - Exceeds OEM Specifications. Rick -- since the Vortec heads are basically identical in every way to the 1996 Impala SS/ Caprice 9C1 LT1 steel head -- with the exception of the waterjacket design for the reverse-flow cooling, I guess we can look there for a few answers. Drop in (this means no machining) beehive spring kit for GM Vortec heads 906/062. BOBCRMAN@aol. CNC-Machined Combustion Chamber: No CNC-Machined Intake Runner: No CNC-Machined Exhaust Runner: No Intake Port Location: Standard Exhaust Port Shape: Square Exhaust Port Location: Standard Spark Plug Style: Straight Intake Valves Included: Yes. VORTEC Cylinder Head CAST# 906 062">NEW BARE Chevy 350 5. 65@125mph 406 with home ported Dart 215 heads. To determine what type of heads are on your small block Chevy, take a look at the illustrations below for 'Early' or 'Late' Style, Aftermarket Aluminum SBC heads, Aftermarket Cast Iron heads, and other SBC cylinder heads. 430) which were recommended by Comp for my application. The 906 heads with the Inconel seat were from the 3/4 and 1-ton HD applications, the idea being the wide, single-angle seat made from Inconel would withstand prolonged towing up grades. 480 lift - will these springs support my cam choices below? No roller Gen 1 5. The larger valves also allow for more aggressive cam profiles, which can further improve performance. The 062 is the head you will get when buying the Vortecs from the dealership/GMPP. A COMPLETE set New, New Chevy Vortec heads of "CNC-UnderCover Ported" with the above listed " CNC-UnderCover Porting" modifications, machined for screw-in studs, 11/32″ stainless valves, springs for a flat tapped or hydraulic cam, spring locators, steel retainers, machined valve locks, surfaced with a flat cut for your compression rule and assem. THIS HEAD IS COMPLETE WITH VALVES AND SPRINGS. FITS 1996 to 2002 3/8 STUD 65 pounds each CHEVROLET 1500 PICKUP 96-99 CHEVROLET 2500 PICKUP 96-99 CHEVROLET VAN 96 -2002 ESCALADE 99-00 GMC 1500 PICKUP 96-99 GMC 2500 PICKUP 96-99 GMC VAN 96 2002 SUBURBAN 1500 96-99 TAHOE 96 2000 YUKON 1996-2000. The specs are going to be: 4-bolt 350 Block (4. Vital Specs for 706, 852, and 862 Castings 1999+ LM7 5. 7 350 Currently has factory 260hp camshaft installed, not sure on specs. Product Details ALUMINUM FAST BURN HEADS Chevrolet Performance’s Fast Burn 23-degree cylinder heads deliver maximum performance for Small-Block engines. Vortec Heads Reader Guide. Specifications: Outside Diameter- 1. in my own opinion any of the new style chambers dont require the extra lead the heads of yester year did. THIS HEAD IS COMPLETE WITH VALVES AND SPRINGS. GM CHEVY 350 VORTEC #906 062 CYLINDER HEAD. this head is complete with all valves,springs,lifters cam and rockers and is fully machined to aera specs. 906 062 V8 VORTEC CYLINDER HEAD">CHEVY GM 350 906 062 V8 VORTEC CYLINDER HEAD. I'm running Comp Cams 987 double springs (1. Other specs: The engine is. The increase was primarily due to the high port flows in the. The cast-iron Vortec heads offer a 170cc LT1-derived port, making them great performance pieces for street engines when tons of torque is key. One version had an Inconel exhaust seat with single angle valve grind and was available on 1 ton trucks. From the factory, it comes with 10:1 compression, a forged crank, cast pistons, and a steel hydraulic roller camshaft; with 0. 15705 Views 5 Replies 5 Participants Last post by bowtie0069, Sep 19, 2009. One variant, available on one-ton lorries, had an Inconel exhaust seat with a single-angle valve grind, and the standard three-angle valve grind was the only other option. 16@118mph 461 BBC 8:1 compression with junk peanut port heads. From the factory, it comes with 10:1 compression, a forged crank, cast pistons, and a steel hydraulic roller camshaft; with 0. Chevrolet Vortec Cylinder Heads' fast burn combustion chamber and high-velocity ports combine to produce big horsepower. The other casting is 10239906 which uses hard seat inserts on the exhaust side otherwise these two castings are the same. These are great heads, I wouldn't hesitate to use them, especially. They not only out flow but also out burn the older heads. 040'' for increased compression ratio. 550" Lift Rate- 378# Average Coil Bind 1. 02 STAINLESS STEEL INTAKE VALVES 1. Uses bare head P/N 12529093. Vortec 062 heads thought I would share some …. PAIR OF GM CHEVY 350 VORTEC #906/062 CYLINDER HEADS.