Posted by T.L. (IP: 206.133.171.12) on July 13, 1999 at 19:00:56:
In Reply to: Speaking of screw in Studs posted by Mark on July 13, 1999 at 12:03:35:
If your cam has less than .500-inch lift, you do not need screw-in studs...if it's more than .500, then you do...The Performer manifold would fit the 351 heads but WHY?!!!...They have smaller valves and lower compression due to the larger combustion chambers...
: Okay...I have stock 65 289 heads with 194/160 valves. Slotted pushrod holes. The only advantage I can see to screw in studs is that they won't pull out. Does anyone really see any other reason that I should concider this option? What about roller rockers????
: I would go with 351 heads, but would my 289 Performer intake fit on them? And isn't there a water jacket that needs to be cut in the 351 heads? Haven't really put a finger on the whole 351 head conversion. I
know that it was mentioned below, but some of the more unanswered questions are remaining unanswered there.
: Stock push rods. Would I need valve guides with the slotted heads?
: I know that the 351 heads have larger runners than the 289, but is it really worth the effort on a street machine. Not planning on racing. Need drivability. Have an extra set of 289 heads.