Pistons for 502
05-04-2008, 07:58 PM
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502 replacement pistons are not availabe at this time for the 502 .i needed a set myself my machine shop told me the same thing . im a motor head and told them to stop all work and i would get my own. guess what i called everyone . even spoke to je direct they were making all pistons for gm but lost the contract so no more available . i had mine custom made by manley. 502 replacements identical only 0.30 600.00 to my door . who is doing the machine work ????
05-04-2008, 08:16 PM
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I had my 502 rebuilt and it was already .030 over, so instead of going to the next size (.060). my builder suggested having custom pistons .035 over made because he said it would leave me room to go even bigger at the time of next rebuild, and that .060 was the "safe" limit on my block. I think the pistons took 4 weeks to get and cost $650. So I did it. This way if it needs to be bored again, I can safely do it.
05-04-2008, 10:47 PM
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05-04-2008, 11:52 PM
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That is a really good deal.
I had the same problem with JE earlier this year. No pistons in stock and was told a 8-12 week delay. This was in February. I called Bob Teague and he had some .030 mini domes in stock for a 6.385 rod, so I bought two sets and two sets of Manley rods from him. You may want to give him a call to see what he has on the shelf!
Dave
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05-05-2008, 12:35 AM
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My guess would be Mahle is making the GM branded pistons now.
Ross, SRP, Probe, even TRW/Speed pro will all have a high quality compression comparable piston to wha the originals were. they don't only have to come from the OE manufacturer to be correct.
As fa as going .034 over, have you checked to see if there are .040 oversize available? That is a less common but still off the shelf oversize for many engines. Possibly 502 as well?
Ross, SRP, Probe, even TRW/Speed pro will all have a high quality compression comparable piston to wha the originals were. they don't only have to come from the OE manufacturer to be correct.
As fa as going .034 over, have you checked to see if there are .040 oversize available? That is a less common but still off the shelf oversize for many engines. Possibly 502 as well?
05-05-2008, 06:33 AM
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pistons
That is a really good deal.
I had the same problem with JE earlier this year. No pistons in stock and was told a 8-12 week delay. This was in February. I called Bob Teague and he had some .030 mini domes in stock for a 6.385 rod, so I bought two sets and two sets of Manley rods from him. You may want to give him a call to see what he has on the shelf!
Dave
I had the same problem with JE earlier this year. No pistons in stock and was told a 8-12 week delay. This was in February. I called Bob Teague and he had some .030 mini domes in stock for a 6.385 rod, so I bought two sets and two sets of Manley rods from him. You may want to give him a call to see what he has on the shelf!
Dave
