The S/B big head flow head is the W9. Not to shabby. The better heads for big flow aren't made anymore. The W8.
Ether way, ethe head, should get the job done for the all out racer I think.
Also do remember the W2 & W5 heads are replacement "like" style heads without the extra head bolts. These two heads are above Edelbrock heads but fall short of the full race head that the later years produced. They are still relatively inexpensive compared to the race heads and slightly more expensive than Edelbrock heads.
W9 by Ryan J. (
Shady Dell Speed Shop )
LIFT-----AS-CAST--------PORTED
------------IN/EX-----------IN/EX
.100”------72.5/N/A--------74.2/N/A
.200”---129.4/103.5-----141.5/102.8
.300”---189.8/146.6-----200.1/158.7
.400”---239.8/172.5-----245.0/203.6
.450”---265.6/176.0-----276.0/215.6
.500”---288.1/182.8-----303.6/226.0
.550”—293.2/182.8-----332.2/233.6
.600”---295.0/184.6-----349.8/241.5
.650”---295.0/184.6-----370.2/247.7
.700”---295.0/184.6-----379.2/251.1
.750”----N/A/N/A--------387.5/258.1
W7 CNC Arrington heads as reported by Ryan J
LIFT-----CNC ARRINGTON PORTS
.100”----67.3/N/A
.200”—127.7/96.6
.300”—198.4/138.0
.400”—277.1/200.5
.450”---312.3/222.5
.500”---339.2/236.3
.550”---359.6/248.4
.600”---377.3/258.8
.650”---386.2/267.4
.700”---392.5/270.8
.750”---393.3/274.3
.800”---393.3/276.4
OK! Who out there NEEDS this kind of head flow?
