Which Head Is A PR3-1?

[bowdown201]

b16 right? if so which one or does it matter?

[allmotorX]

could be a older model b16 head just depends on the code, and what car it came out of

[green91]

the pr3-1 could be off a b16a/b, b17 or itr. the -1 does not indicate any year model, its only a casting number

[allmotorX]

the pr3-1 could be off a b16a/b, b17 or itr. the -1 does not indicate any year model, its only a casting number

That what i meant to say