oldsmobile heads

[boatermike]

whats a good factory cast iron head for oldsmobile 455? i currently have j casting and wonder how they stack up?

[classicboater]

"C" head are claimed to be the best as far as factory head go. "J" head are a later emission type head. You can get your J heads flowing better for about the same price it would cost for the C's. I've got 2 455's, one with J and one with C. I haven't run either yet so I can't say from experience.

[72EbkoStinger]

The "F" heads were on the 1970 Olds 442 W30. I thought these were the best flowing ones. Especially when coupled with the "W455" aluminum intake. Unfortunately, they are as rare as hen's teeth and very pricy if you can even find them.

You might call these guys.

http://www.mondellotwister.com/

They know Olds performance for cars. Don't know about marine work.

Just my 2 cents...that most likely isn't worth that.

:D

D

[classicboater]

Yes F heads are good! But rare. Same with D. It looks like you would do good with C, D,DA, some E, F, and some G. All of these have versions with big valves. C heads seem to be more available. J heads did not come with big valves.

[wriedt1]

I have K heads on my 455 whats the deal with them?

[72EbkoStinger]

I have K heads on my 455 whats the deal with them?

Check this article out. It mentions the K heads towards the end.

http://www.442.com/tech/enginearticle.html

If you check out the link I posted earlier, I think you will find that there are some good options for the 455. Nothing is too cheap though....but what performance parts are?

D:cheers:

[mikemoody69]

Boatermike,, if you are in south la i live in mount airy and i have a complete 455 olds with the c heads that is in my way. Its yours if you want it or know anyone who needs it .

[boatermike]

cool, ill take!!!, im bumblebeehead on yahoo messenger, do you use messenger?if so say hi

[mikemoody69]

Sorry i am on msn messenger . Let me know when you want to pick t up and ill make arrangements.

[boatermike]

a non-posting pertson steps out of the shadows and becomes a member! thanks and welcome to scream and fly!

[mikemoody69]

Thanks mike , i signed up awhile ago just reading posts never had anything good to post about. Been out of the water for about 5 years now but plans are in he works. I hope to have my eliminator sprint in the water by mid summer

[boatermike]

cool, and you can get a ride in mine before that hopefully, im gonna go on a wrench frenzy and be back floating in 2 weeks max

[mikemoody69]

That would be great my boat is n pieces right now . The transom and stringers are out along with all the rigging hopefully i can set my pump back about 6 inches. I have been dealing with tom at jet boat performance really nice and knowledgable guy .

[BUSHWACKER]

BBC is the best way to stop the BBO problems and save money :thumbsup:
Been there, done that in a 23' Avenger pump boat. :o

[Stv Euro]

C's are good. We run them on a jetboat but all are good with the big valves and a lot of porting.

[boatermike]

got c heads tonight!!!!