"The CNC LS9 heads do away with the “swirl wing” and surpass even a CNC LS3 head with 322.7cfm at .600-in. lift on the intake and 218.2cfm at .700-in. lift on the exhaust."
https://www.enginelabs.com/engine-te...rted-ls-heads/
MAST offers an assembled pair of LS7 heads, ported to 305cfm, for $3800.00:
https://www.mastmotorsports.com/coll...cylinder-heads
Butler has a CNC round port E-Head offering that flows 340+ for $3295.00:
https://butlerperformance.com/i-2445...tegory:1394343
.
__________________
.
1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song:
http://www.youtube.com/watch?v=7zKAS...ature=youtu.be