Toughts on this Rotating assembly
http://www.lunatipower.com/Product.aspx?id=343&gid=185 I know the crank and rods will be fine, but what about these pistons? The car is a street car pushing 10-12 psi.
Thanks |
those will be fine, but you can get -31cc pistons for a 383 which would be better off
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What do -31 cc pistons put the compression ratio at?
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roughly 8.5 to 1 with 60cc combustion chambers......... I have a compstar kit for sale. 3.750 stroke, 4.030 bore, 6" rod, -31cc diamond dish piston and all forged. Pistons are custom order through compstar. PM me if your interested.
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Originally Posted by 1996camaroSSclone
(Post 5949667)
roughly 8.5 to 1 with 60cc combustion chambers......... I have a compstar kit for sale. 3.750 stroke, 4.030 bore, 6" rod, -31cc diamond dish piston and all forged. Pistons are custom order through compstar. PM me if your interested.
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Thanks for the info guys.
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what Ford is talking about, is that the -31s have a deeper dish, making more of the top around the ringlands thinner, creating more of a possibilty of cracking a piston, etc.
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Originally Posted by reamo04
(Post 5951676)
what Ford is talking about, is that the -31s have a deeper dish, making more of the top around the ringlands thinner, creating more of a possibilty of cracking a piston, etc.
Thanks for the clarification! ;) |
something you could do, that would be your best option for a HIGH hp car, call ross and get a custom piston, they will make a shorter piston that sits down further in the hole. This will be a custom flat top piston, eliminates the thin sidewalls of the deep dish mass made pistons, and much stronger.
They arent too badly priced either, i believe around 700/set. |
Originally Posted by ford
(Post 5950930)
How much power are you making on your kit? It is almost exactly like a kit i was looking to purchase except it had a lunati crank. I kinda thought twice about it because a few people talked about the fact the -31cc pistons couldnt hold as much power. thanks!
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I could just let go of the pistons and keep the crank and rods if anyone wants them. diamond 2618 built for boost....
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