BIG BLOCKS

 

 

Prices do not include California Sales Tax or Freight Cost (approx $400).

 

All Prices are Now Out of Date Some Engine Cost More Some Less (2008)
 

  

Big Block 454

 

 

12491355.jpg

7.4L L19/L29 $3400(2008 price) Remanufactured Engine

This large displacement workhorse has the torque to handle big jobs—towing trailers, hauling heavy loads and other weighty tasks—while providing the power, strength and endurance truck owners have grown to expect. A single piece rear oil seal helps reduce oil leaks. Reduced weight turned-skirt hypereutectic strut-less pistons reduce friction. The heavy-duty nodular crankshaft has deep rolled fillets for increased strength and durability. Steel camshaft and roller lifters on newer applications help reduce friction, improve wear resistance and increase low-end torque. The priority main lubrication system keeps the bottom end lubed under tough duty. The L19/L29 V-8 displaces 454-cubic-inches.

L29 Vortec Big Block Cylinder Head was used on 1997-99 pick-ups with 7.4L engines. They are the best kept secret of GM.

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88890529 $4600 

ENGINE New Goodwrench 454 (L19) 1985-1993 Truck

New Goodwrench Replacement Engine 1985-1993 Trucks with L19 454 Engine.

Direct replacement for 1991-1993 Trucks

1985-1990 Trucks require additional parts to retrofit this Gen VI engine into trucks originally equipped with mark IV engines.Please call for specifics.

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88890530  $4600 

1994-95 3/4 -1 TON PICK-UPS 7.34L / 454 ENGINE

94-95 CK 2,3 (L19) MT1, MT8, MW3, 94-96 G3 (L19) MT1, 94-97 P3 (L19) MT1 - (mechanical fuel pump application only, use p/n 12465237 for electrical fuel pump application)

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88890531 $4600 

1996-00 3/4 - 1 TON PICK-UPS 7.4L / 454 ENGINE

96-00 CK2,3, G3 96-99 P3 (L29) (MT1) (MW3) (7.4J)

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88890534 $4600 

 1998 1 TON VAN 7.4L / 454 ENGINE

98-99 P3 (L21) MT9, NB6, NF2, 99-00 C6,7 B7 (LP4)(L21)

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HT502

88890534 $5500 

512FT/LBS Torque Small Port Low RPM

GM WARRANTY

 

 StrokerEngine Turnkey Package Options

BGSD1402010sm.jpgDemon Carb

Holley Model 4160 Adjustable Float Carburetors - HLY-0-80508SEdelbrock Performer Carburetors - EDL-1411Edelbrock Performer Series Street Fuel Pumps - EDL-1722Summit Chrome Gas Line Kits - SUM-G3110
         1              1                 2            3                   

 Holley Carb Street Avenger

 Edelbrock Performer, 750 cfm, 4-Barrel, Square Bore, Electric Choke, Single Inlet, Silver, Carburetor

 Edelbrock Victor Fuel Pump 110 gph 6 psi Female threads 3/8 in. NPT

Fuel line to fuel pump

Summit Blueprinted HEI Distributors - SUM-850001RSummit Blueprinted HEI Distributors - SUM-850001-1MSD Street Fire HEI Distributors - MSD-8362MSD Pro-Billet HEI Distributors - MSD-8365MSD Digital E-Curve Pro Billet Distributors - MSD-8394Accel SuperStock 4000 Series Spark Plug Wire Sets - ACC-4071NGK V-Power Spark Plugs - NGK-2756
 HEI Distributors.  Spark Plug Wire Set  NGK Spark Plugs

 

12568774 454 425HP

 GM LIST: $6,878.57
 StrokerEngine PRICE: $5300 (add TK Pack $700)

The 454 HO offers tremendous value in a big block crate engine. Based on the GenVI block this 425 horsepower iron head engine is a great choice for that muscle car in the garage. We've heard of several of our customers replacing their rare matching number 396 427 or 454 with our 454 HO in order to drive their car on today's gasoline without fear of destroying their classic engine. The HO stands for high output it also stands for big valves rectangular ports forged pistons forged steel crankshaft forged connecting rods and four bolt mains. Sounds a lot like the performance big blocks of the late 60's doesn't it ? When you add in the steel roller camshaft shotpeened rods windage tray one piece rear main seal and high speed single roller timing chain it sounds more like the performance big block of the 90's. And it is !The 454 HO makes 500 Ft/Lbs of torque with its rectangular port open chamber cylinder heads. With 118cc combustion chambers the modest 8.75 to 1 compression ratio loves today's pump premium and has no appetite for lead octane boosters or other fuel additives. Its 2.19" intake and 1.88" exhaust valves and high lift .510"/.540" roller cam let it breath with the best of the early muscle car motors.With your carburetor HEI distributor exhaust system and bright red '67 Corvette coupe (sold separately 31 years ago) you've got a muscle cruiser worthy of your time effort and expertise. And if you want to use your muscle car's fuel system with a mechanical fuel pump you can because the 454 HO GenVI block has a conventional style fuel pump boss.The 454 HO is not intended for marine use and should only be used in 1973 and earlier pre-emissions street vehicles or any year off road vehicles.Technical Note: For manual transmission applications use flywheel #14096987 and a suitable 11" clutch assembly.

 

12498777 ZZ454 440hp

GM LIST: $7,907.14
  StrokerEngine PRICE: $6000 (add TK Pack $700)

Based on the time tested 454 HO GM has added a set of GM Signature Series aluminum cylinder heads taking the overall performance up to a stout 440 hp and 500 ft. lbs. of torque. The ôall newö ZZ454 carries the same quality components offering forged pistons forged steel crankshaft forged connecting rods and four bolt mains. This classic muscle car motor has all modern technologies incorporated into it such as a roller cam forged bottom end and a compression ratio that will let you fill up at the pump. (Technical Notes: For manual transmission applications use flywheel 14096987 and a suitable 11ö RAM clutch assembly. Distributor P/N 1104067 or melonized distributor gear P/N 10456413 must be used on all crate engines with steel camshafts). TECH SPECS: *454 Cubic Inch *Horsepower: 440 @ 5250 RPM *Torque: 500 @ 3250 RPM *Max. Recommended RPM: 5500 *Compression Ratio: 9.6:1 *Camshaft #24502611 Hydraulic roller: -Gross Lift (.510ö I / .540ö E) -Duration @ .050: (.211 I / 230 E) *Cylinder Heads #12363390: Aluminum 110cc with 2.25ö Intake & 1.88ö Exhaust valves *Four bolt main GEN VI block *Forged Steel connecting rods *Forged Steel crankshaft *Cast aluminum valve covers *8ö Balancer *Cast iron water pump *14ö auto trans flexplate



 

 

12568778 - 502 H.O. 450hp & the StrokerEngine 509 Upgrade

GM LIST: $8,028.57
  StrokerEngine PRICE: $6300

 

               Excellent Value Click Here for the Details

Also go to this page to read about the 502 oil consumption

 

502 HO Technical Information

Horsepower 450 @ 5250 RPM
Torque 550 Ft. Lbs. @ 3500 RPM
Max. Recommended RPM 5500
Compression Ratio 8.75:1
Block 10237292 Cast iron - four bolt main caps
Crankshaft 10183723 Forged steel
Connecting Rods 10198922 Forged steel - 
Shot peened, 7/16" bolts
Pistons 12533507 Forged Aluminum
Piston Rings 12524293
Camshaft 24502611 Hydraulic roller
Lift .510" I, .540 E.
Duration @ .050" 211º I, 230º E.
Timing Chain 3891519 Single roller
Cylinder Heads 14096801 Cast iron
118cc Combustion chambers
Intake Valves 14097045 2.19"
Exhaust Valves 14097049 1.88"
Valve Springs 14097002
Valve Lash Net lash
Rocker Arms 12523976 1.7:1
Intake Manifold 3933163 Aluminum with Holley flange
Torsional Damper 10216339 8"
Flexplate 10185034 14"
Fuel 92 Octane
Spark Plugs MR43T Gap .035
#10 Rapidfire Gap .035
Ignition Timing 36º @ 3600 RPM with vacuum advance disconnected
Technical Notes: Distributor, exhaust and carburetor are not included with this engine.  For manual transmission applications, use flywheel 14096987 and a suitable 11" clutch assembly.  Distributor P/N 1104067 or melonized distributor gear P/N 10456413 must be used on all crate engines with steel camshafts.

From: ....................................
To: strokerengine@hotmail.com
Subject: 502 burning oil
Date: Tue, 30 Oct 2007 13:10:19 -0500

 

Is the problem of the 502 burning oil, common to all 502s or just the HO?
 
 I'm considering putting a 502HO in my Revcon motorhome. Considering it over the HT, because of where the torque peak is on the HT seems too low. I cruise at 3K to 3.2K rpm, so it seems if I down shift, I'd be above the power band in the HT.
thanx,
 
 
Dave L......
Senior Electronic Service Technician
 
 
 

Hello Dave.

I had a long talk with a Chevy dealer who told me there is no problem with oil burning with the 502.

I sold one to a customer. He said it burns oil.

The HO and HT use the same ZZ502 short block with different camshafts.

The HT uses the large port heads.

While the power curves don't look that different on paper, the throttle response is better with the HO because of the high velocity of the intake charge at lower RPM.

 My customer also complained that the carb did not work well on the 502.

The Carb Shop (Ontario California) said it is too big and poorly tuned.

After talking to GM and the Carb Shop about the cost of making it right, we decided to toss the carb and buy a better one.

 


 

 

 

 

12496963 - ZZ502 Fully Assembled 502/502

  GM LIST:  $9,057.14

 TSEC PRICE: $6900 
 

 

 

 

 

 

12496962 - ZZ502 Fully Assembled 502/502

 GM LIST: $10,471.40
 PRICE: $7900

 

ZZ 502/502 Technical Information

Horsepower 502 @ 5200 RPM
Torque 567 Ft. Lbs. @ 4200 RPM
Max. Recommended RPM 5800
Compression Ratio 9.6:1
Block 10237292 Cast iron - four bolt main caps
Crankshaft 10183723 Forged steel
Connecting Rods 10198922 Forged steel - 
Shot peened, 7/16" bolts
Pistons 12533507 Forged Aluminum
Piston Rings 12524293
Camshaft 12366543 Hydraulic roller
Lift .527" I, .544 E.
Duration @ .050" 224º I, 234º E.
Timing Chain 3891519 Single roller
Cylinder Heads 12363390 Aluminum oval port
110cc Combustion chambers
Intake Valves 12366987 2.25" Stainless Steel
Exhaust Valves 12366988 1.88" Stainless Steel
Valve Springs 12462970
Rocker Arms 12368082 1.7:1
Intake Manifold 12363407 Aluminum Holley flange
Carburetor 12366996 Holley 850cfm
Distributor 1104067 HEI
Starter 9000852 Gear Reduction
Water Pump 14058915 Aluminum
Valve Lash Zero
Spark Plugs #4 Rapidfire Gap .035
R43XLS Gap .035
Fuel 92 Octane
Ignition Timing 8º BTDC @ 800 RPM
36º Total @5000 RPM
Technical Notes: Distributor P/N 1104067 or melonized distributor gear P/N 10456413 must be used on all crate engines with steel camshafts.


 

 

 

12499121 - Ram Jet 502

 GM LIST: $12,700.00
 PRICE: 9500

 

 

The recipe is simple; one part attitude, one part driving perfection, one part leading factory technology, and five hundred and two parts hungry rat motor. Ram Jet 502, you either have one or you want one ! When the idea of an all new big-block fuel injection system first came up, we all thought it was a good one. When it was proposed that it be integrated with our 502 crate engine, we thought somebody clearly lost their mind. Who could possibly need the awesome, flat, broad torque curve only available with a long runner dry manifold ? And who would want the neck-snapping throttle response of MEFI 3 controlled port fuel injectors ? And what would be the need for aggressive tunnel ram styling ? But then we remembered we're not building 100 mile per gallon, 0 to 60 in a week, econo-scooters. We're in the hot rod business ! So we called together engine management system experts from GM Powertrain, our own GMPP engineers, and fuel injected race engine builder and GMPP Pro Mod racer Harold Martin. After some great discussions, a little debate, a lot of late nights and 50 gallons of coffee we had an intake manifold design like no other. By leveraging leading fuel management technology, numerous production developed components, the industry standard MEFI 3 controller and the great Ram Jet name from the 1950's, the Ram Jet 502 is a reality. The new undisputed heavy weight champion, the Ram Jet 502, makes 502 horsepower at 5100 RPM and 565 Ft/Lbs of torque at 3200 RPM. But the real story is the torque curve, the Ram Jet 502 makes more torque throughout its operating range. This is possible because Ram Jet has a larger plenum and runners than would ever be possible in a carbureted application. This means greater intake efficiency and greater torque without sacrificing driveability. The Ram Jet manifold is so efficient that we're able to make all of this horsepower and torque with a production L98 throttle body assembly, you know, the one that Firebird and Camaro owners always replace when trying to make more power in their 350ci engines. It's all about airflow quality, velocity, and fuel and spark management. You'll just have to drive one to appreciate it. If the one-second cold starts, no stalling, instant throttle response, and the solid pull from idle to red line don't convince you that a Ram Jet 502 is for you, then maybe we could interest you in a 100 mile per gallon, 0 to 60 in a week econo-scooter ! The Ram Jet 502 is not intended for marine use, and should only be used in 1973 and earlier pre-emissions street vehicles or any year off road vehicles. Technical Notes: Do not use bolt sealer on the cylinder head bolts, the holes are blind tapped. The long block kit includes partial engine, cylinder heads, valve covers, valvetrain, and fasteners and gaskets for the parts included. The complete engine kit includes the long block kit plus intake manifold, carburetor, distributor, water pump, spark plugs, spark plug wires with looms and additional fasteners and gaskets.

 

 

GM WARRANTY Click Here                         The ZZ572 Monster Engines Click Here

 

 

 

 

 

Bare L29 Vortec Big Block Chevrolet
Large Oval Port Cast Iron Cylinder Heads

These heads flow the same as "peanut port heads, and not as well as older oval port heads although some ovals are better than other (049 better than 702).

Intake @   .200 / 500 Lift

GM Peanut  125 / 226    L29  121 / 226

Oval 049- 124 / 250 702 - 121 / 237

Rectangle 188 129 / 259 990 125 / 264

None of these heads will be very impressive compared to AFR 275 oval 154 / 323  305 154 / 335 CNC Chamber 163 / 344

 

BBC_H_10141280.jpg

Intake Port Flows
CFM @  Lift 
63       .100
121     .200
165     .300
198     .400
226     .500
242     .600

 

Part #  10141280
 
Valve Size:   2.065"/1.725"
Chamber Volume CC:   99cc
Spark Plug Position:   Angled
Spark Plug Size:   14mm
Spark Plug Reach:   0.708"
Spark Plug Number:   RS12YC

The GM Performance Parts L29 Vortec Big Block Cylinder Head was used on 1997-99 pick-ups with 7.4L engines. They are the best kept secret of GM. The small 99cc combustion chambers raise compression by 1 full point from the stock 119cc heads. The large oval port design flows better than any factory oval port head. If you are looking for a good head to put on your tow rig to help you haul the load, then the L29 Vortec big block head will do the trick.  For use on 1991 and later Gen V and VI engines only.

Click Here For BBC More Flow Charts

BBCHeadsstock454.jpg picture by strokerengine

This is a PC dyno model of a stock 454 with the following heads

                                   Rectangle   Oval     Peanut     Swirl                   

1500rpm       499          496            493           493  

3000rpm       478          518            451           467 

         The Oval port is probly not quite as good at 3000rpm

I can't simulate the swirl effect.

 

Bare Gen V/VI  Big Block Chevrolet
Rectangle Port Cast Iron Cylinder Head

  BBC_H_12562920.jpg

 

Part #  12562925

 
Valve Size:   2.190"/1.880"
Chamber Volume CC:   118cc
Intake Port CC:   325cc
Spark Plug Position:   Angled
Spark Plug Size:   14mm
Spark Plug Reach:   0.460"
Spark Plug Number:   RV9YC
This "Iron" cylinder head from GM Performance Parts is intended for use with the Gen V & Gen Vi design 454 (7.4-liter) big-block HO V8 engine (part P/N 24502618) and 502 engine (P/N 24502620). It has a 118cc open chamber with 2.18" intake valves and 1.88" exhaust valves. It also has rectangular intake ports and 3/8" rocker bolt holes.

 

Assembled Gen V/VI  Big Block  Chevrolet
 Rectangle Port Cast Iron Cylinder Head

BBC_H_12562925.jpg
Part #  12562920
 
Valve Size:   2.190"/1.880"
Chamber Volume CC:   118cc
Intake Port CC:   325cc
Spark Plug Position:   Angled
Spark Plug Size:   14mm
Spark Plug Reach:   0.460"
Spark Plug Number:   RV9YC
This "Iron" cylinder head from GM Performance Parts is intended for use with the Gen V & Gen Vi design 454 (7.4-liter) big-block HO V8 engine (part P/N 24502618) and 502 engine (P/N 24502620). It has a 118cc open chamber with 2.18" intake valves and 1.88" exhaust valves. It also has rectangular intake ports and 3/8" rocker bolt holes.

 

 

BB Chevrolet 502 Bare Block, Gen VI

BBC_B_10237292.jpg

Part #  10237292
 
Bore as Shipped:   4.470"
Max. Bore:   4.500"
Max. Stroke:   4.250"
Main Bore:   2.750"
Rear Seal:   1-piece
Cam Bearings:   CH-12
Main Caps:   Straight 4-bolt
 

 

This Gen VI block is a strong foundation for a big block project. The short deck block was designed to meet the needs of a powerful and dependable 500ci engine. It is good for 700 hp, perfect for street use and sportsman type racing. The cylinder walls are siamesed and are bored to 4.470”. The decks are reinforced to improve head gasket sealing. 4-bolt main caps are installed to reinforce the cylinder barrels and add strength to the bottom end. It does not have a fuel pump boss for mechanical pump.