piston to valve clearence with AFR 225 and 248-250 cam on stock shortblock?
09-03-2006, 11:03 AM
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piston to valve clearence with AFR 225 and 248-250 cam on stock shortblock? I have some 225s and a 248-250 .613 lift cam that I'm wondering if I can use on a stock shortblock without worrying about piston to valve clearence if I don't fly-cut the pistons. Thanks, Brian
09-03-2006, 11:15 AM
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Originally Posted by 6speeder
I have some 225s and a 248-250 .613 lift cam that I'm wondering if I can use on a stock shortblock without worrying about piston to valve clearence if I don't fly-cut the pistons. Thanks, Brian
09-03-2006, 12:33 PM
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would that hinder the amount of nitrous I can run, or would I have other problems(like factory rod bolts breaking) before the fly-cutting started to be a problem?
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09-03-2006, 01:18 PM
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It is considered too much when you don't know how much is too much.
How much thought have you put into your setup? You have very good individual components, but the key to making superior power is executing the proper combination. Large valves, big duration, low static compression, no fly-cut pistons sounds like a recipe for disappointment.
If you're willing to flycut, then your possibilities open up. If not, then you most certainly will need to reconsider your cam choice. It's entirely too big.
How much thought have you put into your setup? You have very good individual components, but the key to making superior power is executing the proper combination. Large valves, big duration, low static compression, no fly-cut pistons sounds like a recipe for disappointment.
If you're willing to flycut, then your possibilities open up. If not, then you most certainly will need to reconsider your cam choice. It's entirely too big.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
09-03-2006, 08:55 PM
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I have the parts from a 402 so I wanted to use them for now (I would never have purchased a cam that large for a 346!). With those heads, a fast 90/90, kooks 1-7/8th headers, and not flycutting the pistons what would be a good nitrous cam for a 250 shot direct port on a 346?
Are the rod bolts really worth it if I don't spin the motor too high, but spray it with a 250 shot and some race gas?
Are the rod bolts really worth it if I don't spin the motor too high, but spray it with a 250 shot and some race gas?
