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Old 10-21-2019, 01:24 PM   #1
WHAMMO


 
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PRC 260 PTV clearance with huge solid roller cam?

Anyone got a huge cam with PRC heads 255-260 heads?

I'd get them with 67-66 cc chambers.

I want to run a solid roller llsr like 244 / 257 with around 670 lift.

I was planning to run ported LS3 heads and flycut but I might want to not flycut so looking at custom heads and looking for 11.0-11.2:1 compression.
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13' 1LE, TSP 231-236/Tick 660/.105 PR/ Ti. , UDP, SW LT 2'' &HFC, NPP/H pipe, VR-DRX CAI, air scoop, Goertz1 manifold& 102mm BBK, 26" Toyo DRs, Forgestars 17x10&18x8, rear seat delete, remote Pat G tune Autocal, 7500 limiter, Spec Mini Twin.
11.90@122.3, 0-60ft 2.0 / 11.99@123.6, 0-60ft 2.1 DA+819 ...Need a bigger cam and Slicks.
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Old 10-21-2019, 02:48 PM   #2
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Mine were 65cc. Milled them .035" to get around 60cc for 12:1
I run a 243/255 hyd. and had to flycut.
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Old 10-21-2019, 03:06 PM   #3
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Quote:
Originally Posted by Bo White View Post
Mine were 65cc. Milled them .035" to get around 60cc for 12:1
I run a 243/255 hyd. and had to flycut.
Thanks
Did you flycut much?

A solid would be like 240 253 and I wouldn't mill cause I run on 91oct...

Any update on your times?
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13' 1LE, TSP 231-236/Tick 660/.105 PR/ Ti. , UDP, SW LT 2'' &HFC, NPP/H pipe, VR-DRX CAI, air scoop, Goertz1 manifold& 102mm BBK, 26" Toyo DRs, Forgestars 17x10&18x8, rear seat delete, remote Pat G tune Autocal, 7500 limiter, Spec Mini Twin.
11.90@122.3, 0-60ft 2.0 / 11.99@123.6, 0-60ft 2.1 DA+819 ...Need a bigger cam and Slicks.
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Old 10-21-2019, 05:55 PM   #4
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My stock heads were 64.5 cc with Manley valves.
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Old 10-21-2019, 10:37 PM   #5
WHAMMO


 
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Quote:
Originally Posted by CFD View Post
My stock heads were 64.5 cc with Manley valves.
Soo stock LS3 heads milled and what cam? Not PRC custom?

..or just a solid roller ?
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13' 1LE, TSP 231-236/Tick 660/.105 PR/ Ti. , UDP, SW LT 2'' &HFC, NPP/H pipe, VR-DRX CAI, air scoop, Goertz1 manifold& 102mm BBK, 26" Toyo DRs, Forgestars 17x10&18x8, rear seat delete, remote Pat G tune Autocal, 7500 limiter, Spec Mini Twin.
11.90@122.3, 0-60ft 2.0 / 11.99@123.6, 0-60ft 2.1 DA+819 ...Need a bigger cam and Slicks.
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Old 10-21-2019, 10:44 PM   #6
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Stock LS3, not milled.
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Old 10-22-2019, 02:41 AM   #7
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I flycut the pistons .100" just because
I run pump 93 but keep timing at 24*
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