440 source sleath heads

mechanic190 said

The guy that we send our heads to up in challis, ID says they are great a little port work and they are better than indy 440ez heads by far. Haven't run them but he would swear by them. His current project is my dad's old school hemi heads, has them flowing just above 350 cfm.

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Your dad's 331 hemi heads are flowing 359-362 cfm @ .700" lift.

OOTB Indy EZ flows on our bench are.

.100.............69
.200............131
.300............190
.400............239
.500............283
.600............307
.700............313

Send me a pair of Stealth heads and $700. You'll get the the pushrod openings for 1.6 rockers and 3/8 pushrods. Comp 10 degree retainers and locks, valve guides sized, valves back cut, valve job and heads that flow.

.100..............75
.200.............150
.300.............210
.400.............250
.500.............280
.600.............295
.700.............297

We can port Stealth heads to over 340 cfm.