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Old 09-30-2007, 20:33   #1 (permalink)
Randy Williams
 
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351C heads on a 351W? help

I've been trying to read up on my interchangeable parts to save money to start off with on the build. I've known for awhile now that the 351c heads can be put on 351w's because they obviously flow a hell of a lot better than the w's.

I'm just doing a mild build;

already bored .30 over and hone
stock crank
steel stock 351w rods (if they ever made them for 4x4's and I can find them)
Flat tops (one of the only newer things I will be getting when the time comes)

with that setup- what Cleveland heads should I try to find? the 2v's or 4v's or go another route? From my understandment aren't the 4v's for high rev motors? This is my first build, so I would assume the 2v's would be all that I need if I chose a cam with the lift somewhere @ .285-.299 or that general area?

If this is the way to go, I think the water passages on the heads would have to be matched to the block as well from what I read. How much does this usually cost if anyone knows.

Thanks guys
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Old 10-03-2007, 06:43   #2 (permalink)
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Re: 351C heads on a 351W? help

I honestly know very little about a Cleveland. I know a few people that have wanted to do this. From what I understand,unless you have a set,or get a great deal on a set. You could buy a set of aftermarket windsor heads,for what it will cost you to buy the clevelands and have them redone,and probably make more power with the aftermarket ones.
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Old 10-03-2007, 17:03   #3 (permalink)
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Re: 351C heads on a 351W? help

hi there. putting clevo heads on the windsor is possible but i agree with 91GT347 about using aftermarket heads. these days its the way to go at the price you get them for and the performance you gain, go with the after market 351W heads. to fit clevo heads this is a brief look at what you need to do; buy and build 351 clevo heads, or for higher compression buy and build aussie 302 Clevo heads. 351W conrods, clevo pistons, pay attention to cam choice as the higher clevo rocker ratio changes cam values at the valve, modify water passages in heads, mod front engine acessory brackets, buy specific intake manifold, change pushrods, change exhaust (usually to whatever clevo manifolds/extractors fit in your vehicle when using a clevo, if available, may need custom fit) , change carby/EFI setup. now that was very breif and as you see will get expensive. the 4V heads are more for mid/top end and the 2V are more low/mid but with some port work are the best choice for a street car/truck. it was a modification that was popular in the old days! when it was to expensive to even think about aftermarket heads, and i must say that the 351W does perform really well with the clevo heads but these days i reach for the aftermarket catalog and just bolt something better on. much easier. hope this helps and if you choose the clevo head route im happy to give more advice. cheers
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Old 10-03-2007, 18:33   #4 (permalink)
Randy Williams
 
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Re: 351C heads on a 351W? help

Thanks guys.

I had no idea they would require that much work in order to fit. I thought it was a bolt-on besides the water jackets/intake. It also seems that Cleveland parts are harder to come by in my opinion.

from the beginning I've always wanted to get a set of AFR 185cc's, but again the budget kicks in. Maybe I can find a good set of used heads that don't require any work on ebay or something. I'm sure I could...but that also might be hard to find.

Hey just to let you guys know...if you or anyone you know is from michigan...check out MOTOWNMUSCLE. it's a decent forum and it seems alot busier (not trying to hate on FF's haha). People sell all kinds of parts on there. Even for your GM/MOPAR buddies.

thanks again
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Old 10-04-2007, 06:46   #5 (permalink)
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Re: 351C heads on a 351W? help

Theres a set of AFR 185's down in the shop,just sitting there. They were off my 331 that had a broken ring. I assume they are good. The car smoked like hell,but like I said. It had a broken ring. Have to think about it,but they may be for sale.
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Old 10-04-2007, 19:26   #6 (permalink)
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Re: 351C heads on a 351W? help

Wow, that was unexpected. You'll have to let me know and if they are usable send me some pics and a price. I'd def take em off your hands for sure if you gave me a little time to come up with the money.

Thanks man

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Old 10-05-2007, 15:59   #7 (permalink)
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Re: 351C heads on a 351W? help

there ya go, ask about a head swap and ya end up with a nice set of afr's! an easy fit and they will out perform a clevo head swap easily! cheers
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Old 09-27-2010, 23:57   #8 (permalink)
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Re: 351C heads on a 351W? help

May I add a question? I have a 1989 351W with cracked E5AE heads. Cant find the E5AE heads anymore. What heads would you buy if you were me? Aftermarket or reman's. What casting would you suggest? E7TE perhaps?
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Old 09-28-2010, 07:28   #9 (permalink)
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Re: 351C heads on a 351W? help

I would go aftermarket Brian. For performance anyway. It really depends on what you want to do with the engine. If power is not your goal remans would be fine.
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Old 10-09-2010, 15:14   #10 (permalink)
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Re: 351C heads on a 351W? help

Edelbrock now makes C heads & an intake specificly to put on the W! Makes it easy.
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