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Which heads which?

298 views 6 replies 2 participants last post by  My280ZxIS KILLINGME 
#1 ·
How can I tell what head i have on my 280zx?
Is the number stamped on the side or something?
Also i have and 83' and a 79' 280zx which head should I use for more compression
If the 79' is the one should use does it have round exhaust ports, I need to find out before i tear into the 79' since the headers on my 83' are round port I would like to know before I go through all of the work to take the head off the 79'
thanks for the advice
-J-
 
#6 ·
Re: where is the block stamped at?

The block is stamped down low by your oil pan. Unless someone has swapped the block it should be a f54. The compression and pinging question has many variables. If you add a performance cam and a slightly thicker head gasket you will drop the compression a little which reduces your chance of pinging. Keep in mind raising your compression by itself will not make a huge difference in h.p.
 
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