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Founder, 1929-2014
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Chevrolet is a name synonymous with winning. Their crate engines are rigorously tested and proven to provide reliable, durable, and outstanding power. Whether you're an aspiring racer or a seasoned pro, Chevrolet Performance has the crate engine to help you win at every level.

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  • GM Performance Replacement Valve Springs for Chevy 604 Engine, Set/16
    GM Performance Replacement Valve Springs for Chevy 604 Engine, Set/16
    (Part #35512495494)
    x
                Replace your worn out valve springs in your GM  604 engine with these quality steel replacement  springs.  They are GM Factory replacement and are sold as a complete set of 16. 
    • GM factory replacement 
    • Chevy 604 engines
    • 1.32" O.D.
    • 101 lbs @ 1.780" Seat Pressure
    • 332 lbs/in Spring Rate
    • 1.220" Coil Bind
    • Set of 16 single springs
  • Chevrolet Performance 19258602 Sealed 350 602 Small Block Crate Engine
    Chevrolet Performance 19258602 Sealed 350 602 Small Block Crate Engine
    (Part #35519258602)
    x
                Please view the product's page for more information
            
  • GM Performance IMCA Sealed CT 350 602 Crate Engine, IMCA Approved
    GM Performance IMCA Sealed CT 350 602 Crate Engine, IMCA Approved
    (Part #91019258602)
    x
                Please view the product's page for more information
            
  • GM Performance 604 Crate Engine Retro Beehive Spring Update Kit
    GM Performance 604 Crate Engine Retro Beehive Spring Update Kit
    (Part #35519300952)
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                GM valve spring update kit.  Now you can update  your first generation 604 to the new legal Beehive springs.  Comes with  16 Beehive springs, 16 locators, 16 spring retainers, and 32 keepers.
    • Legal upgrade for your 604 crate engine
    • Includes:
      • (16) Beehive springs
      • (16) locators
      • (16) spring retainers
      • (32) valve keepers
  • GM Performance Replacement Valve Spring Retainer for Chevy 602 Engine
    GM Performance Replacement Valve Spring Retainer for Chevy 602 Engine
    (Part #35510241744)
    x
                Replace your worn out valve spring retainers in your GM  602 engine with  these  quality steel replacement retainers.  They are GM Factory  replacement and  are sold each. 
    • GM factory replacement 
    • Chevy 602 engines
    • Sold each
  • Chevrolet Performance 19318604 Sealed 400 604 Small Block Crate Engine
    Chevrolet Performance 19318604 Sealed 400 604 Small Block Crate Engine
    (Part #35519318604)
    x
                Please view the product's page for more information
            
  • GM Performance Replacement Valve Cover Gaskets, 602/604 Crate Engine
    GM Performance Replacement Valve Cover Gaskets, 602/604 Crate Engine
    (Part #35510046089)
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                Replace those old or leaking valve cover gaskets in your Chevy  602/604 engines with these  quality rubber replacement gaskets.  They are GM Factory replacement and  are sold each. 
    • GM factory replacement 
    • Chevy 602/604 crate engines
    • Sold each
  • GM Performance 19154761 602 Chevy Replacement Valve Springs, Set/16
    GM Performance 19154761 602 Chevy Replacement Valve Springs, Set/16
    (Part #35519154761)
    x
                Replace your worn out valve springs in your 1996 LT4 Corvette, ZZ4, GM 602 CT350/400 or ZZ383 engine with these quality steel replacement springs.  Sold as a complete set of 16. 
    • Set of 16 single springs
    • Outside diameter:  1.25"
    • Pressure @ installed height: 80# @ 1.70"
    • Solid height: 1.20"
    • Average Rate (lbs@in): 256
    • Genuine replacement part number 12495494 for 1996 LT4 Corvette, ZZ4, GM 602 CT350/400 and ZZ383 engines
    • Note: Catalog technical description update with correct specs as provided here.
  • GM Performance Replacement Valve Lock Keepers, 602/604 Engines, Set/32
    GM Performance Replacement Valve Lock Keepers, 602/604 Engines, Set/32
    (Part #35512495503)
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                Replace your worn out valve keepers in your GM  602 or 604 engine with these  quality steel replacement keepers.  They are GM Factory replacement and  are sold as a complete set of 32 pieces. 
    • Set of 32-piece split keepers
    • GM factory replacement 
    • Chevy 602/604 engines
  • GM Performance Replacement Valve Spring Retainers, Chevy 604, Set/16
    GM Performance Replacement Valve Spring Retainers, Chevy 604, Set/16
    (Part #35519171528)
    x
                Replace your worn out valve spring retainers in your GM  604 engine with these  quality steel replacement retainers.  They are GM Factory replacement and  are sold as a complete set of 16. 
    • Set of 16 single retainers
    • GM factory replacement 
    • Chevy 604 engines
  • Chevrolet Performance 602 GM Crate Engine Replacement Push Rod, Each
    Chevrolet Performance 602 GM Crate Engine Replacement Push Rod, Each
    (Part #35514095256)
    x
                

    These push rods are designed for use with GM Performance 602 crate engines. Stronger and more durable than normal, these rods are sure to not disappoint. Chevrolet Performance parts will serve you longer and will provide maximum safety and performance. Sold each.

    • 7.79" x 0.312"
    • 0.11 lbs.
    • Enhanced engineering features provide improved stability, reduced deflection, and constant column strength.
    • GM Performance 602 crate engines
    • Sold Each
  • GM Performance Replacement Push Rods for Chevy 604 Engine, Set/16
    GM Performance Replacement Push Rods for Chevy 604 Engine, Set/16
    (Part #35512371041)
    x
                Replace your worn out push rods in your GM 604 engine with  these  quality steel replacement push rods.  They are GM Factory  replacement and  are sold as a complete set of 16. 
    • Set of 16 push rods
    • GM factory replacement 
    • Chevy 604 engines
  • GM Performance 12499224 Replacement Beehive Valve Spring, 604 Engines
    GM Performance 12499224 Replacement Beehive Valve Spring, 604 Engines
    (Part #35512499224)
    x
                

    With a .570" maximum lift, these Beehive™ Valve Springs from GM Performance are replacements for our GM 604 Crate engine. They allow big block engines to turn more RPM too. The unique Beehive™ shape handles valve train stress more efficiently to eliminate damaging harmonics and increases high RPM horsepower and durability. The oval/multi-arc wire shape places the maximum area of the wire at the point of highest stress to handle valve train stress more efficiently and allow better heat dissipation for longer life. Because of the unique Beehive™ design, the valve train can handle more RPM and more aggressive cam profiles.

    • Beehive™ Valve Springs
    • Replacement for GM 604 Crate engine
    • 1.29" O.D.
    • 1.085" Coil Bind Height
    • 375 lbs./in. Spring Rate
    • 1.25" @ 295 lbs. pressure
    • 1.8" installed height at 90 lbs. pressure
    • Max Lift .570"
    • Set of 16

     

  • GM Performance 19210728 Chevy 604 Replacement Rocker Arm, Set/16
    GM Performance 19210728 Chevy 604 Replacement Rocker Arm, Set/16
    (Part #35519210728)
    x
                Replace your worn out rocker arms in your GM  604 engine with these  quality steel replacement arms.  They are GM Factory replacement and  are sold as a complete set of 16. 
    • GM factory replacement 
    • Chevy 604 crate engine
    • Includes lock nut
    • Set of 16
  • GM Performance 19318604 Sealed CT 400 604 Crate Engine, IMCA Approved
    GM Performance 19318604 Sealed CT 400 604 Crate Engine, IMCA Approved
    (Part #91019318604)
    x
                Please view the product's page for more information
            
  • GM Performance 10089648 602 Chevy Replacement Rocker Arm
    GM Performance 10089648 602 Chevy Replacement Rocker Arm
    (Part #35510089648)
    x
                These replacement aluminum rocker arms for GM 602 crate engines feature a 1.5 ratio and come with the nut and ball.  They work with 3/8" studs.
    • 1.5 ratio rocker arm
    • Single service part for 3/8" stud
    • Rocker arm with nut and ball
    • Non-roller rocker arm style
    • Polylock rocker arm nut style
    • Self-Aligning
    • Genuine GM 602 replacement part number 10089648
    • Sold each