Probably should have done this while the engine was down
#3246975
07/24/24 10:44 AM
07/24/24 10:44 AM
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Joined: Dec 2021
Posts: 1,296 Loudoun County, VA
Brad_Haak
OP
pro stock
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OP
pro stock
Joined: Dec 2021
Posts: 1,296
Loudoun County, VA
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After the block was re-honed for the 2nd time, the piston-to-wall clearance w/ my Ross pistons was up to .006-.007". I thought about putting on coatings to reduce the skirt clearance, but wasn't sure if it was worth it at the time. https://www.youtube.com/watch?v=0eBkoM_RtDAhttps://www.youtube.com/watch?v=M9UTOUZOD2E
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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Re: Probably should have done this while the engine was down
[Re: Brad_Haak]
#3246990
07/24/24 12:26 PM
07/24/24 12:26 PM
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Joined: Jan 2003
Posts: 2,969 A shed in England
Tig
master
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master
Joined: Jan 2003
Posts: 2,969
A shed in England
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Is this stuff different to the normal moly coated skirts you can get ? We got our Diamond pistons skirts coated from them, as after numerous rebuild / hones our piston clearance was on the larger side.
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials. 9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge. RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: Probably should have done this while the engine was down
[Re: Tig]
#3246994
07/24/24 12:33 PM
07/24/24 12:33 PM
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Joined: Jan 2003
Posts: 19,522 Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,522
Las Vegas
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We use Line to Line for freshen ups frequently. Especially when customer doesn't need or want to spend the $$ for new pistons.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: Probably should have done this while the engine was down
[Re: Brad_Haak]
#3247153
07/25/24 05:22 AM
07/25/24 05:22 AM
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Joined: Jan 2003
Posts: 10,072 Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,072
Frostbitefalls MN (Rocky&Bullw...
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I did a set for 4.500 bore pistons , built up for 4.5043 by Line2line. Worked great, and that 550 cube 440-1 alky motor made 926 hp at 7200 rpm. They can go as much as .020 overbore. Each .006 increase beyond the first is a bit more$$.
Last edited by gregsdart; 07/25/24 05:25 AM.
8.582, 160.18 mph best, 2905 lbs 549, indy 572-13, alky
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