302 head compatibility

cazandoenmicoche · 05-17-2007, 09:02 AM

Anyone know if 89 302 heads fit on a 65 289? Also is it recommended due to combustion chamber differences? I don't want to do it if there is a significant power loss, I'm just looking for cheaper alternatives to rebuilding the old heads.

~The Jester~ · 05-17-2007, 12:21 PM

302 heads will bolt directly on a 289 block.

Compression loss? That's still up in the air.

Gettin away cheap? You're good to go, just don't look for performance.

rwhite65 · 05-18-2007, 08:00 AM

There is probably going to be a slight compression loss, however the better design in the 89 heads is going to flow a little better.

Jester is right on the performance aspect, but I will say that the E7TE's I just took off my car ran very strong for being home ported heads.

Ryan

05-17-2007, 09:02 AM	#1
cazandoenmicoche Registered Member Join Date: May 2007 Posts: 1	302 head compatibility Anyone know if 89 302 heads fit on a 65 289? Also is it recommended due to combustion chamber differences? I don't want to do it if there is a significant power loss, I'm just looking for cheaper alternatives to rebuilding the old heads.

05-17-2007, 12:21 PM	#2
~The Jester~ Rat Killer Join Date: Aug 2002 Location: Cold ass Ohio Posts: 1,143	Re: 302 head compatibility 302 heads will bolt directly on a 289 block. Compression loss? That's still up in the air. Gettin away cheap? You're good to go, just don't look for performance. __________________ d-Con Racing "Nothing fancy, just 347 inches of RAT POISON!" MICE need not apply.....

05-18-2007, 08:00 AM	#3
rwhite65 Ride Hard Join Date: Oct 2000 Location: Wyoming IL Posts: 1,094	Re: 302 head compatibility There is probably going to be a slight compression loss, however the better design in the 89 heads is going to flow a little better. Jester is right on the performance aspect, but I will say that the E7TE's I just took off my car ran very strong for being home ported heads. Ryan __________________ 65 Fastback 91 roller 306, H/C/I AOD-Bauman, PI Stallion, 4.10's and traction loc 04 Grand Cherokee Freedom Edition 79 Ford F-250 4x4 - Restored

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