Re: low deck pistons availability
[Re: Youngblood]
#2973604
10/12/21 04:53 PM
10/12/21 04:53 PM
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Joined: Jan 2003
Posts: 2,094 central texas
krautrock
top fuel
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top fuel
Joined: Jan 2003
Posts: 2,094
central texas
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looks like you're setup is for the Mahle piston with 1.12 compression height. I don't think there are many pistons for that combo... 4.35 and 4.375 bore.
Last edited by krautrock; 10/12/21 04:57 PM.
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Re: low deck pistons availability
[Re: fbs63]
#2973645
10/12/21 07:04 PM
10/12/21 07:04 PM
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Joined: Jan 2003
Posts: 6,139 Melbourne , Australia
LA360
master
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master
Joined: Jan 2003
Posts: 6,139
Melbourne , Australia
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Ross used to make a piston for that in 4.390 bore. A friend had a set of Ross pistons for a the same or similar combo. Not sure if he still has them.
Alan Jones
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Re: low deck pistons availability
[Re: Youngblood]
#2974157
10/13/21 10:24 PM
10/13/21 10:24 PM
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Joined: Jan 2003
Posts: 9,996 Frostbitefalls MN (Rocky&Bullw...
gregsdart
master
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master
Joined: Jan 2003
Posts: 9,996
Frostbitefalls MN (Rocky&Bullw...
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[quote=Youngblood]I have a 400 getting stroked right now. Block was standard bore, but did not clean up at .030, so my brand new pistons will not work. 4.150 crank, 6.76 rods with .990 pins, looking for flat top or small dish in 040,050,055 now. Anyone carry this in forged shelf piston? Thanks for any direction [/quote
I had a Megablock 4.500 bore rehoned, scratches didn't disappear till 4.5043. I had my old CP pistons coated by Line2Line. Cost $300 but worked great. 550 inch with 440-1 heads made 926 hp using those coated pistons. They coat them within .0025 of actual bore size, then run the motor through a breakin procedure in several steps. I believe in L2L. Coatings. They say they can make up as much as .020 overbore if needed. Call them and discuss your situation.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: low deck pistons availability
[Re: gregsdart]
#2974271
10/14/21 11:05 AM
10/14/21 11:05 AM
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Joined: Jan 2004
Posts: 8,251 fredericksburg,va
cudaman1969
master
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master
Joined: Jan 2004
Posts: 8,251
fredericksburg,va
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[quote=Youngblood]I have a 400 getting stroked right now. Block was standard bore, but did not clean up at .030, so my brand new pistons will not work. 4.150 crank, 6.76 rods with .990 pins, looking for flat top or small dish in 040,050,055 now. Anyone carry this in forged shelf piston? Thanks for any direction [/quote
I had a Megablock 4.500 bore rehoned, scratches didn't disappear till 4.5043. I had my old CP pistons coated by Line2Line. Cost $300 but worked great. 550 inch with 440-1 heads made 926 hp using those coated pistons. They coat them within .0025 of actual bore size, then run the motor through a breakin procedure in several steps. I believe in L2L. Coatings. They say they can make up as much as .020 overbore if needed. Call them and discuss your situation. You had me hoping there at first till the last paragraph. Mine is 4.53 I can find quite a few used sets at 4.5. I’ve looked on most all sites and no one stocks .030 over for some reason.
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