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**Backpayne** · 09-08-2017, 09:55 PM

More than likely the heads are J heads which are the most restrictive. I am currently rebuilding a '72 Olds 455 for my '64. Which headers/exhaust manifolds do you have?

$500 would be a steal for a running/good condition 455.

09-08-2017, 09:55 PM	#4
Backpayne Senior Member Join Date: Nov 2015 Location: Seligman, MO Posts: 620	Re: 73' Olds 455. More than likely the heads are J heads which are the most restrictive. I am currently rebuilding a '72 Olds 455 for my '64. Which headers/exhaust manifolds do you have? $500 would be a steal for a running/good condition 455.