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#1
01-13-2005, 09:50 PM
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I have a customer looking for .030 over 421 pistons. I'm having trouble locating them. Does anybody know of a set or have a set?
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#2
01-13-2005, 09:50 PM
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I have a customer looking for .030 over 421 pistons. I'm having trouble locating them. Does anybody know of a set or have a set?
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#3
01-13-2005, 10:12 PM
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Try Ross or BME, both good pistons and they'll make anything you want.
__________________
Bill 64 GTO, tube chassis w/606" IA tall deck, PG & a pro geared Fab 9". 2750 lbs. 8.2550@164.17-1/4, 5.2901@131.97-1/8, 1.1981-60-ft. 8/10/08 
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#4
01-13-2005, 10:22 PM
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Here's a link with some others as well.
http://forums.performanceyears.com/g...6697#406106697 Might try Ken (Pontiac Dude) as he is offering custom forged pistons for $465 and up if your looking for forged. http://forums.performanceyears.com/g...11&m=807108289 Good luck on it. Rick
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'72 Formula 455HO TH400, Revere Silver, black deluxe '74 Trans Am SD 4 speed, Admiralty Blue, blue deluxe |
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#5
01-14-2005, 12:02 AM
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KB-Silvolite makes 428 pistons, I dont know if there would be issues with the valve notchs which are slightly different from 421
__________________
  My Daddy bought me a car but all I got was this old Pontiac.
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#6
01-14-2005, 03:02 AM
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BVR brings up a good question. What heads are being used with this engine?
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Have A Great Day |
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#7
01-14-2005, 06:01 AM
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Give us a call if you can't locate a set already out there.
Custom pistons with pins & locks for under $500.00 
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#8
01-14-2005, 06:14 AM
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Thanks for the responses. I'll try those and let you know what I find. I'm using the original heads, so I need a piston with a dish to lower the compression ratio. I'm looking for about 9.5 to 1. Thanks.
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#9
01-15-2005, 12:31 PM
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I have a set of used standard size TRW 428 pistons. About 1000 miles of street driving. They have a factory dish of about 8cc and 4 valve notches. I can cnc mill in more dish area if you want. They are on rods. $175 with custom dish milled in. e-mail is tmc@netins.net
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