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Chevy 454 Base Engine 500HP
ATK HP451P Chevy 454 Base Engine 525HP 1pc Seal
Our Price (USD): $5,600.00

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!
Chevy 454 Base Engine 565HP
ATK HP411P Chevy 489CI Base Engine 565HP Gen V
Our Price (USD): $7,350.00

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.
Chevy 496 Stroker Base Engine 600+ HP
ATK HP631P Chevy 496 Stroker Base Engine 600+ HP
Our Price (USD): $8,700.00

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!
Chevy 540 Base Engine 660+ HP
ATK HP42 Chevy 540 Base Engine 660+ HP
Our Price (USD): $10,300.00

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.
Chevy 496 Stroker Base Engine 600+ HP
ATK HP631PC Chevy 496 Stroker Complete Engine 600+ HP
Our Price (USD): $10,350.00

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!
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.