JonathanJ.

Hello everyone, new to the forum, with a question that not even Google came up with a clear answer.

Where can I find a list for the different meanings of casting numbers for heads? Specifically between PT3-7 and PT3-8.

I am installing a motor from an Accord '94 into a '92 Prelude S, and am wanting to know if the PT3-7 off the Prelude is incompatible and / or different compared to the PT3-8 off the Accord. Both blocks are the F22a1.

Thanks in advance for any clarification!

jon

JonathanJ.

Anyone? Got the motor swap and everything works fine, but still wondering what the differences are in head #s!