AdamR
Big Member
I just picked up a bunch of 360 stuff. Included was a set of 4343474 casting heads. A quick search sow them as 85-89 318 4bbl/360 heads. Are these the same castings as the 308s ?
Are you sure they aren't 974?
576 is an over the counter only version of the 308.
I was wondering where you were getting your casting number info for 85-89.
I have a 318 with a 4 barrel intake that looks like it was born there, that I'm trying to identify.
All the casting number info I can find on the web either stops at 1974 or 1979.
Rusty are you trying to one up me on "don't F with me" cat avatars?
The 308 casting date is a indicator too, but yes the pushrod holes are pretty large, due to the fact that they were on, IIRC 90-92 roller cam 360sMeasure the pushrod hole. The 308 will have PR hole that is a little over 5/8". The earlier heads have a 1/2" PR hole. This would be an indicator IMO.
I just picked up a bunch of 360 stuff. Included was a set of 4343474 casting heads. A quick search sow them as 85-89 318 4bbl/360 heads. Are these the same castings as the 308s ?