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!
Flow Data w/3.900" Bore Plate
LiftIntakeExhaust
0.1007657
0.200147110
0.300218172
0.400274214
0.500318234
0.550333242
0.600342248
0.650349252
0.700353257

 

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Mast 240cc Small Bore LS3

  • Product Code: MAst240ls3
  • Availability: In Stock
  • $1,999.99

  • Ex Tax: $1,999.99

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