LS 4.0 Stroke 4340 Crankshaft Stroker Deck surfaces machined perpendicular to

Deck surfaces machined perpendicular to mains & deck height set for optimal quench

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

Dress like Mesa team

(Please use the compression ratio chart below to see which pistons to choose for your compression decision and then pick the proper pistons in the dropdown box)

LS 4.0 Stroke 4340 Crankshaft Stroker Deck surfaces machined perpendicular toManley 4. 0 stroke 4340 forged LS crankshaft . Manufacturer part number 190058