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View Full Version : OT 533 head swap onto '85 535?



Gene in NC
04-02-2006, 01:35 PM
OT 533 head swap onto '85 535?

winfred
04-02-2006, 04:09 PM
i don't see why it wouldn't work, not sure on cam spec's and valve sizes so i don't know if one is a upgrade for the other but they should interchange fine

winfred
04-02-2006, 04:12 PM
ps if you'd have a need for a whole motor the new guy at our shop just pulled a sweet running motor out of his 84 533 to replace it with a turbo'd 3.5 saturday, i could find out what he wants for it if you like

Rustam
04-02-2006, 08:01 PM
OT 533 head swap onto '85 535?

It took me a while to find this address among the browser's "favorites" - you may want tp take a look at this. It has some interesting information regarding swapping various heads on m30 engine.

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http://www.firstfives.org/faq/cylinder_head/cylinder_head_faq.htm



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632 Regal
04-02-2006, 09:12 PM
very good article regarding the heads as to valve sizes, compression volume and water chambers.


It took me a while to find this address among the browser's "favorites" - you may want tp take a look at this. It has some interesting information regarding swapping various heads on m30 engine.

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http://www.firstfives.org/faq/cylinder_head/cylinder_head_faq.htm



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Rustam
04-02-2006, 11:28 PM
very good article regarding the heads as to valve sizes, compression volume and water chambers.

and a note on camshafts!

Gene in NC
04-04-2006, 07:45 PM
Thanks all for the posts. Rustam, the link is a treasure of info.

http://www.firstfives.org/faq/cylind...r_head_faq.htm

Head was on eBay and went for <$125 inc ship. Claimed 12/24 cast date and 535 compat. I was uneasy with cam compatability, esp for my '85 535at. Faint memory of 533 as more of a clean revver like a M20 than the torque grunt of M30.

My 535at needs cam. Would have needed to change cam in 533 for Motronic compatability so only possible benefit might have been better valve train and the one rocker that must be replaced. Visual inspection indicates that only #1 exhaust lobe and rocker are bad. Not even any visible wear on the other 11 lobes.

eBay prob still good buy, but for reasons other than current. Like, what to pay for a parts car? Value = only to parts that you need.