408 LS 4.000 stroke gm big block 125" Cylinder Head Compatibility: LT4

125" Cylinder Head Compatibility: LT4

Dry sump $7890 Wet Sump wet sup $7395

Theses engines are suitable for 1600-2100 Hp levels

These new blocks are put through the same machining process as all our engines (we do not use new blocks without machining them like most of our competitors ) all blocks are inspected for cracks and flaws then fully blueprinted and assembled to fit your needs

For the Crankshaft forged 4340 - Billet option

408 LS 4.000 stroke gm big block 125" Cylinder Head Compatibility: LT4MBRE uses a 6. 0 L iron block fully blueprinted machined balanced rotating assembly and magnetic particle inspected components . We use all 4340 forged crankshafts 4340 Hbeam rods and forged pistons to achieve your required static compression.