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Small Block Chevy 604 Crate Motor Header Gaskets

SAME DAY SHIPPING! Order within the next 6 hours 24 minutes and receive same day shipping

Specs
Material Type:
Gasket Material
Sold in Quantity:
Pair
Overall Thickness:
.07
Port Style:
D Port
Port Height:
1.51
Port Width:
1.51
MFG. Part #:
1560
Garage Sale:
No
Small Block Chevy 604 Crate Motor Header Gaskets
Small Block Chevy 604 Crate Motor Header Gaskets

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Small Block Chevy 604 Crate Motor Header Gaskets

Please NOTE the following about this product:

  • This item is sold as a pair.

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What's in the Box

Small block Chevy header gaskets for GM 604 crate motors with aluminum cylinder heads.

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Willys Carbs WCD50127 GM 604 Crate Motor 4 Barrel Carb, Gasoline
                        

If you are running the GM 604 crate motor, you need one of these Willy's four barrel carburetors. They are specifically built and dyno tuned to give you maximum power from your crate engine. 

  • Billet metering blocks
  • Based on a 750HP body, flows over 900 CFM
  • Down leg boosters
  • Choke horn/tower removed for increased flow
Willys Carbs WCD50127-E85 GM 604 Crate Motor 4 Barrel Carburetor, E85
                        

If you are running the GM 604 crate motor, you need one of these Willy's four barrel carburetors. They are specifically built and dyno tuned to give you maximum power from your crate engine.

  • Billet metering blocks
  • Based on a 750HP body, flows over 900 CFM
  • Down leg boosters
  • Choke horn/tower removed for increased flow
Performance S127212-602-604 GM 602/604 Crate DUI Stealth Distributor
                        

The 602/604 DUI is designed specifically for these crate engines with two features that set it apart from regular Racing DUIs. First, the mechanical advance is calibrated on a distributor machine with an aggressive and accurate timing curve designed to meet the requirements of these crate motors. This special racing curve will ensure maximum performance and get your car out of the corners faster. Second, a melonized
gear is installed on the distributor (instead of the stock cast gear) which is compatible with factory roller cams. 

  • Capable of turning 9000 RPM
  • No external spark boxes or coils are needed
  • Easy drop-in installation with a one wire hookup
  • Sends 2-3 times more spark into the combustion chamber than a magneto
  • Allows spark plug gaps to be opened up to .055"
  • Only pulls 2-3 amps (other systems draw 10+ amps)
  • Key distributor parts are polished and lubed for smooth operation

Available in "Stealth" version with no decals and a black cap for a bone stock appearance.

NGK Spark Plug for GM 525/604 Racing Crate Motors
                        Every NGK spark plug is designed to withstand severe mechanical and thermal shock  associated with these high-revving, high-compression race crate engines.
                    
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GM Performance 19318604 IMCA Sealed CT 400 604 Crate Engine, IMCA Approved
                        
Run up front with our race-winning 400-horsepower 350 with Fast Burn heads!
 
GM Performance Part's Fast Burn cylinder heads are the fast way to the winner's circle –and they're standard on the 350/400 Late Model GM racing engine from GM Performance Parts.
 
This brand-new, factory-sealed racing engine is based on the popular Fast Burn 385-horsepower street crate engine, but includes a racing-only 8-quart circle track oil pan, with dual kick-out design, along with a valve cover breather kit and special "kool nut" rocker arm design. The assembly also includes an open-plenum high-rise intake manifold and 1.5:1-ratio aluminum roller rockers.
 
Because it's based on the 350 Fast Burn engine, the 350/400 racing engine includes a bulletproof bottom end, anchored by a forged steel crankshaft and hypereutectic pistons. The 23-degree, Fast Burn aluminum heads enable tremendous power in the small-block V-8 because of a unique chamber design that quickly and completely burns all of the air/fuel mixture –giving you maximum power all the time.
 
With the 350/400 racing engine under the hood of your Late Model, you'll put a "fast burn" on the competition.
  • Formerly sold as GM Performance 91088958604 IMCA 604 Crate Engine
  • High-revving matched components
  • A fraction of the price of a custom engine!
  • Factory-sealed for equal competition
  • 400 HP @ 5500 RPM
  • 400 ft. lbs. of torque @ 4500 RPM
  • 4.00" x 3.48" bore x stroke
  • 9.6:1 compression ratio
  • 92 Octane recommended fuel
  • 4-bolt main caps
  • Cam lift: .474" intake / .510" exhaust
  • Cam duration @ .050": 208° intake / 221° exhaust
  • 112° lobe separation
  • 1.5:1 ratio stamped rocker arms

Includes:

  • Fully assembled long block
  • Black steel valve covers w/ breathers
  • Oil pump, pick-up, 8 quart oil pan
  • Eliminator Vortec intake manifold
  • Spark plugs
  • 8" harmonic balancer
  • Front timing cover
GM Performance Parts Racing Crate Engines are excluded from the limited warranty.
 
Note: Comes sealed with IMCA issued bolts and is approved for use in IMCA
 
*Check track rules for correct application.
HVH Super Sucker 604 Carburetor 4-Hole Spacer, 5/8 Inch
                        

Designed by Joe Petelle at HVH over 15 years ago for Winston Cup engines, this spacer will increase air speed from the base of the carburetor to the top of the intake valve, pulling more fuel from the carburetor, the Super Sucker will require a change in the size jet currently being used. E.T. is reduced as much as 1/10 of a second and lap times reduced as much as 2/10 of a second.

Improvements in the throttle response, driveability, top end horsepower and torque are commonplace when using a Super Sucker.

This 5/8" aluminum spacer is specifically designed for the 604 crate engine and gives more low end and mid range torque without reducing top end torque.