WTB W31 heads
#1
WTB W31 heads
Basically trying to see if i can locate heads to increase the compression ratio on the 403 we are building. I am looking at 5 heads but obviously they need a modification to bolt up to the 403 and i would like to retain the 2" intake.
5 heads - we need that
Also, we are looking for a local machine shop in Chicago to help.
Nic
5 heads - we need that
Also, we are looking for a local machine shop in Chicago to help.
Nic
#2
Fyi
Not all #5 heads are W-31 heads. The vast majority are not. Any # 4 thru 7a head will work for you if you are willing to install the larger intake valves.
If max compression with stock heads is your objective find a set of 1967 #4 heads as they are they only 64 cc chamber SBO head.
If max compression with stock heads is your objective find a set of 1967 #4 heads as they are they only 64 cc chamber SBO head.
#4
W31 heads
I have pretty much every # small block head ever made. As stated above the W-31 used the bigger valves in an otherwise common head. We raced a '70 W-31 in Stock Eliminator years ago and, when necessary, would have our machine shop install the larger valves in a regular head without any loss in performance. If nothing closer works out or if you know anyone coming down to sunny South Florida, I can provide you with good cores or complete heads, ready to bolt on. I would need some lead time for the complete units. Thanks, Bob.
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