EARLY A body hooker header install P/N 5208 UPDATE!
I ran these for years on a 340 motor in my '65 Barracuda. I cut the wells with anair chisel and a "rooster claw" bit, looked like a spade bit with a tooth in the middle, made a nice cut, get your earplugs out! They worked great but I HAD to run a remote oil filter as the loose filter couldnt be pulled out. Maybe with a dinky one, but a good HP1-A looked nice up on the inner fender and made filter changes a 5 minute job. My problem was the flange was drilled about 1/4 inch too low. I could never keep a header gasket in there for more than about 100 miles as the ports overlapped in one place about 2 mm, enough for a guaranteed burn out. I sent the burned gaskets to Mr. Gasket and they said the things were drilled wrong and would need the receipt to fix, trouble is they were 7 years old at that time. I ran a 205/70R15 and rubbed at full tilt. I wrapped them after I blasted them once to keep rust to a minimum as it was a weekend car at most. 340 logs work great if you can get then to fit, grind a little if you have power steering. Lot less headache than headers and you dont lose any if on a stock motor, you actually gain a few ft/lbs with a log down low.