Looking to take your LS1, LS2 or LS6 engine to the next level? The Mast LS3 240 head is a great choice. This head was designed to allow owners of Gen III ls engines to benefit from the much-improved stock LS3 intakes. This head really thrives when paired with a stroker combination like a LS1 383!
- Easy bolt on to convert your GM Gen III to GM Gen IV head technology
- Perfect for LS1, LS2 and LS6 engines and short-blocks
- Accepts LS3/L92 valve springs, rocker arms, and intake manifolds
- Outflows any aftermarket cathedral cylinder head on the market
- Uses a 2.080" intake valve and 1.570" exhaust valve
- 11 Degree Valve angle
- Has a 61cc combustion chamber standard
- 6 Bolt Standard
- Has a deck thickness of .750"
- Cast & Machined in the USA!
**SOLD IN PAIRS WITH BILLET ROCKER STANDS INCLUDED**
|Flow Data w/3.900" Bore Plate|