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Re: piston compression question
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Posted by ChadS on December 06, 2005 at 10:47:25 from (66.228.96.217):
In Reply to: piston compression question posted by super_m on December 05, 2005 at 14:51:43:
It depends on what kind of pulling you are going to do,,,, Here is a recipe for a good low gear engine,,,, Find a set of FIRECRATER pistons, and dont look back. If you have a 8060 head, you will have to trim one side of the compression chamber for them to clear, but its about a 20 minute job with a hand grinder. Tisco stepped heads are ok,,, but they lack the swirl patterns the firecraters create in the cyl. This helps power and torque. It breathes alot better, give the head a light port and polish, rejet the carb, and turn it loose. That set up is good for 63-68 hp fresh,, you could mill theehad a little, and get it up in to the low 70"s, which you could pull low gear classes up to 8500 and have some good power to let it hook up. We build pistons that can get you over 70hp, 4-1/8th bore,,, and can be done as an inframe overhaul,,, but if you go with anything, and keep the cost down, find a set of firecrater pistons. There was a fellow that has a set for sale, "Supermpuller" has those pistons and, are what you want if your putting together a budget pulling engine. JMHO,, ChadS
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