TL;DR - what is possible difference between head on AT and 5 speed, if visually same porting, valvetrain, bolts, ect?
I am rebuilding my 1982 accord lx 3 door, particularly the EK1 engine. I overworked that puppy for many years on many roadtrips, and now im rebuilding her due to bad compression. Upon opening up the engine, I discovered a cracked head, and a broken piston (the part between the top 2 rings was cracked and broken).
I'm having the block machined with some oversized pistons, and I'm putting all new bearings in the lower end, so I have that covered. I need to get a new head somewhere though....
I ordered one from american cyl head but they sent me the wrong one, and now they're out of stock. everywhere else i find that says they have it, I call and find out they are gonna order from american cyl head and send it to me, but i already know ACH doesn't actually have it.
I found one on ebay that seems right but says it's for Automatic transmission. I am wondering what the differences in the cylinder heads could be for a/t vs 5 speed.
I made sure it has the same valve arrangement, same port arrangement, same bolt patterns on the manifolds, same looking cvcc bs, and the same PC1 casting mark. what else could be different? Please help I need to get this car running ASAP
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