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Chevy 454 Base Engine 500HP
ATK HP451P Chevy 454 Base Engine 525HP 1pc Seal
Our Price (USD): $5,768.00




This is our new version of our former #HP45. We have swapped over to the later model Gen V 1991-1995 engine blocks as the foundation which has NO provisions for a mechanical fuel pump. We have also swapped over to a Hyd. Roller Camshaft/Lifter package for better streetability and a little more power!
more info
Chevy 454 Base Engine 565HP
ATK HP411P Chevy 489CI Base Engine 565HP Gen V
Our Price (USD): $7,571.00

This new version of our 489CI engine is based off the later model GEN V 1991-1995 engine blocks. Due to this they will not have a mechanical fuel pump provision and you must run an electric pump. Timing cover will be different than what is shown in the picture. more info
Chevy 496 Stroker Base Engine 600+ HP
ATK HP631P Chevy 496 Stroker Base Engine 600+ HP
Our Price (USD): $8,961.00

This is our new version of our former #HP63. We have swapped over to the later model Gen V 1991-1995 engine blocks as the foundation which has NO provisions for a mechanical fuel pump. We have also swapped over to a Hyd. Roller Camshaft/Lifter package for better streetability and a little more power! more info
Chevy 540 Base Engine 660+ HP
ATK HP42 Chevy 540 Base Engine 660+ HP
Our Price (USD): $10,609.00

This is a street/strip engine it will have a lopey idle, vacuum will be marginal for power brakes, and big power for the track or the street. more info
Chevy 496 Stroker Base Engine 600+ HP
ATK HP631PC Chevy 496 Stroker Complete Engine 600+ HP
Our Price (USD): $10,661.00

This is our new version of our former #HP63. We have swapped over to the later model Gen V 1991-1995 engine blocks as the foundation which has NO provisions for a mechanical fuel pump. We have also swapped over to a Hyd. Roller Camshaft/Lifter package for better streetability and a little more power! more info
Chevy 598 Base Engine 725HP
ATK HP44 Chevy 598 Base Engine 725HP
Our Price (USD): $10,700.00

Biggest engine we build street/strip ready, must upgrade drive train for an engine of this size. more info