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A powerblock

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john

01-29-2003 13:43:47




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I have a 6-3 powerblock I plan on using, but have no pistons. Has anybody ever used cut "G" pistons in a "A" powerblock?? I have heard of aircraft pistons being usedin stroker applications. I have heard of reproduction powerblock pistons being available but costing $750 a set. Any advice out there??




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Kyle

05-28-2003 19:40:01




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 Re: A powerblock in reply to john, 01-29-2003 13:43:47  

I have a set of powerblock pistons I would sell. You would have to buy new rings. Let me know if you are interested



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bigmotors

01-30-2003 13:54:38




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 Re: A powerblock in reply to john, 01-29-2003 13:43:47  
WTW - will treat you right. If he says the pistons are okay, they will be okay. He could even give you some pointers on finding some hp. if you need it. Good Guy! Not as nice as me, but close.
Good Luck!



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WTW

01-30-2003 07:01:10




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 Re: A powerblock in reply to john, 01-29-2003 13:43:47  
I have a couple of sets of "A" Power-Block piston That I will sell. They were taken out when stock size (6 1/8") "G" aluminum pistons were put in in place of them. If your bore is good theses would be an option. If worn, bore it .125 and put "G" pistons in it. Only alteration necessary is point and step the tops. Wrist pin is same size as your "A" rod. If you cut them right it will raise your compression about 8.5 to 1 (stock head) or if you use a high compression head (Heisler) you will end up around 9.5 to 1. There are many of these around my area running, we call them the poor mans puller. The only bad thing about this piston setup is you want to stoke it someday they are to long to maintain a decent rod length. Good Luck, Dave W.

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JOHN

01-30-2003 08:31:02




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 Re: Re: A powerblock in reply to WTW, 01-30-2003 07:01:10  
Yes I would be interested in the pistons?? How much and how do I get ahold of you??



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WTW

01-30-2003 09:34:06




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 Re: Re: Re: A powerblock in reply to JOHN, 01-30-2003 08:31:02  
John, You can reach me at home in the evenings at 319-377-0947. I have two sets of PB pistons, one heavy and one light set. The heaver pistons are allot better quality than the light ones by design. Both sets are usable and will work in any model "A" Power-Block (6-1, 6-2 or 6-3). Both sets are for the original "Power-Block" standard bore of 6". Dave W.



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bigmotors

01-30-2003 02:54:03




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 Re: A powerblock in reply to john, 01-29-2003 13:43:47  
We used to take 70/720/730 Diesel 6.125 pistons and redo the pin for A rods, or cut the Diesel rod and weld it to the A rod.You can go up to a .045 and .090 pistons. 6.125-398 cu./.045 over would be 404 cu./ and .090 over would be 410 cu. with a stock crank. At 6.215 bore the back of the sleeves get very thin. About 3 inches down - you will see a redge on the sleeve, just cut that off, if you do this make sure the piston is staying in the block.(long rods) Good Luck!

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KEN C.

01-29-2003 18:34:09




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 Re: A powerblock in reply to john, 01-29-2003 13:43:47  
You can buy new pistons from Hinrichs Repair, and they are not that expensive.



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wendel

01-29-2003 16:56:33




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 Re: A powerblock in reply to john, 01-29-2003 13:43:47  
Hank you can have block bored .125 and cut std G piston down they are longer but work ok.Have you checked any tractor salvage yards I live in Mi. have seen a set at Roeters Farm Eq. in Grant Mi. 231 834-7888 they have a trailer with engine parts in it (pistons rods)I don"t kmow if they will help its kinda self serve. good luck



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Hank

01-29-2003 15:23:33




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 Re: A powerblock in reply to john, 01-29-2003 13:43:47  
I have G piston in my powerblock.



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