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10-31-2010, 10:20 PM | #21 |
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Re: Stocker pistons; If none are on the approved list, what to do?
didnt have too much trouble with the witch doctor pistons, ross made them nhra approved them in about 5 weeks... went thru bruce
jack
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Jack McCarthy 3609 STK "the Captain" |
10-31-2010, 10:34 PM | #22 |
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Re: Stocker pistons; If none are on the approved list, what to do?
Alan--I sent you a PM --Comp 387
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10-31-2010, 10:37 PM | #23 | |
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Re: Stocker pistons; If none are on the approved list, what to do?
Quote:
You might want to try my piston co.The Fred Flintstone Forging Co. in Bed Rock Ca.They have a direct line to Danny Gs office.
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Former NHRA #1945 Former IHRA #1945 T/SA Last edited by Ed Fernandez; 10-31-2010 at 10:40 PM. |
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10-31-2010, 11:06 PM | #24 |
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Re: Stocker pistons; If none are on the approved list, what to do?
Maybe things have changed but I had great success with CP pistons turn around time, even on pistons not previously approved for Stock.
My Super Stock engine got a set of Diamond pistons in about three weeks (which do not require NHRA approval). Along the lines of what Ed said, on some engines it can get real costly with rings if it is an odd size. My 390 AMC being one of them. I ran a 4.230" bore in Stock and I spent a lot of $$ on rings and spacers to run the 1.2mm width. It may be more cost effective to run a smaller bore if it is a more common ring size. All depends on if your after every hundredth in ET or not. Now NHRA allows +.075 which is 4.240" for my 390. What that means to me is I can use a 4.250" ring package which will file down nicely. That gets me rings for a few hundred dollars instead of over a thousand dollars.
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Jeff Lee 7494 D/S '70 AMX |
11-01-2010, 12:03 AM | #25 | |
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Re: Stocker pistons; If none are on the approved list, what to do?
Quote:
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Dale Posnick |
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11-01-2010, 12:19 AM | #26 |
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Re: Stocker pistons; If none are on the approved list, what to do?
About 3.4 inches I believe.
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11-01-2010, 02:26 AM | #27 | |
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Re: Stocker pistons; If none are on the approved list, what to do?
Quote:
The 401 AMC is 4.165" x 3.68" And yes, 4.230" bore is standard FE 427.
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Jeff Lee 7494 D/S '70 AMX |
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11-01-2010, 02:55 AM | #28 | |
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Re: Stocker pistons; If none are on the approved list, what to do?
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I am familiar with FE stuff (have a couple) but am quite surprised at the big bore/short stroke of an AMC 390. Learn something every day.
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11-01-2010, 07:36 AM | #29 |
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Re: Stocker pistons; If none are on the approved list, what to do?
I'm good, I don't need a set for a while.
My delays had very little to do with JE, and quite a lot to do with NHRA. See the explanation above.
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Alan Roehrich 212A G/S Last edited by Alan Roehrich; 11-01-2010 at 11:35 AM. |
11-01-2010, 01:36 PM | #30 |
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Re: Stocker pistons; If none are on the approved list, what to do?
So, you don't have to give them a piston?
I had to donate a Scat rod to get them approved. Got a BowTie block PN approved last year, sure was thankful I didn't have to buy an extra block! <G>
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