Home > GM Crate Engines > LS Short Blocks > LQ4/LQ9 Gen IV Short Blocks
These engine's are based off a NEW GM Gen IV block.  They can be used for GEN III applications with a conversion package available from ATK. Please call us for details.
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Chevy LS 364 Stroker Short Block 24 Tooth Reluctor Wheel
ATK SP93-G4 LS 364CI Short Block -3.2cc Flat Top Pistons 24 Tooth
Our Price (USD): $4,000.00

This short block is built for all motor builds with higher compression but with the option of running pump gas it will hold up to 700HP.
Chevy LS 364 Stroker Short Block 24 Tooth Reluctor Wheel
ATK SP94-G4 LS 364CI Short Block -11cc Dish Pistons 24 Tooth
Our Price (USD): $4,000.00

This short block is built for all motor builds with higher compression but with the option of running pump gas it will hold up to 700HP.
Chevy LS 364 Stroker Short Block 58 Tooth Reluctor Wheel
ATK SP96-G4 LS 364CI Short Block -11cc Dish Pistons 58 Tooth
Our Price (USD): $4,000.00

This short block is built for all motor builds with higher compression but with the option of running pump gas it will hold up to 700HP.
Chevy LS 364 Stroker Short Block 58 Tooth Reluctor Wheel
ATK SP95-G4 LS 364CI Short Block -3.2cc Flat Top Pistons 58 Tooth
Our Price (USD): $4,000.00

This short block is built for all motor builds with higher compression but with the option of running pump gas it will hold up to 700HP.
Chevy LS 408 Stroker Short Block 58 Tooth Reluctor Wheel
ATK SP26-G4 LS 408CI Stroker Short Block -10cc Dish Pistons 58 Tooth
Our Price (USD): $4,449.00

This short block is built for all motor builds with higher compression but with the option of running pump gas it will hold up to 700HP.
Chevy LS 408 Stroker Short Block 58 Tooth Reluctor Wheel
ATK SP31-G4 LS 408CI Stroker Short Block -18cc Dish Pistons 58 Tooth
Our Price (USD): $4,490.00

This short block is built for all motor builds with higher compression but with the option of running pump gas it will hold up to 700HP.
Chevy LS 408 Stroker Short Block 58 Tooth Reluctor Wheel
ATK SP32-G4 LS 408CI Stroker Short Block -4cc Flat Top Pistons 58 Tooth
Our Price (USD): $4,490.00

This short block is built for all motor builds with higher compression but with the option of running pump gas it will hold up to 700HP.
Chevy LS 408 Stroker Short Block 58 Tooth Reluctor Wheel
ATK SP36-G4 LS 408CI Stroker Short Block -29cc Dish Pistons 58 Tooth
Our Price (USD): $4,490.00

This short block is built for all motor builds with higher compression but with the option of running pump gas it will hold up to 700HP.
Chevy LS 408 Stroker Short Block 24 Tooth Reluctor Wheel
ATK SP37-G4 LS 408CI Stroker Short Block -10cc Dish Pistons 24 Tooth
Our Price (USD): $4,490.00

This short block is built for all motor builds with higher compression but with the option of running pump gas it will hold up to 700HP.
Chevy LS 408 Stroker Short Block 24 Tooth Reluctor Wheel
ATK SP38-G4 LS 408CI Stroker Short Block -18cc Dish Pistons 24 Tooth
Our Price (USD): $4,490.00

This short block is built for all motor builds with higher compression but with the option of running pump gas it will hold up to 700HP.