OK, so I'm in the middle of rebuilding the top end of the 360 (8600 summit cam, edelbrock 4v intake and carb, etc) and I picked up a set of heads on the cheap a while back that I'm thinking of using.
2 issues -
the 'old' stock heads are bridge style rockers (84 J10) whereas the 'new' heads are post style (72 I believe). Is there a way to make this work out without buying new rockers/pushrods/probably guides? If I take the stud out of the 'new' head I find that it's a 3/8 UNC hole...I could either helicoil the hole to fit the bolt off the old heads, or drill out the bridge a bit and use a 3/8 bolt...anyone tried this?
Old heads
new heads
AND - It appears to me I've gott a set of high performance style heads, as it looks like they've been milled I guess?
old heads
new heads
So if I use the new heads (assuming I can get past the rocker issue) safe bet I'm going to need shorter pushrods, right? My deck clearance height is essentially shorter with the new heads, so I'm going to have to resolve that...correct?
Finally, am I doing myself any good being down this far and looking at high compression heads when the bottom of the motor is still stock and sitting at 90k? Aren't I really going to probably finish off the rings by increasing the compression? If I'm this far in should I just jerk the engine and have it sleeved/reringed/etc? I have maybe a .010 ridge at the top of each cylinder wall...so not great, but not terrible either. The motor didn't smoke/burn any oil prior to the teardown...
thoughts?
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