T-rex and stock length pushrods
way way way to close if not already hitting the pistons the trex is a monster. the duration kills it when it comes to pvc. 232intake 239exh duration is the biggiest i would go with stock uncut heads. thats just my opinion but i like to have at least .100 minimum pvc clearance.
The T-Rex fits tighter than the classic .080"/.100" P to V clearance guidelines, no doubt, but that hasn't stopped hundreds of people from running them without issue. Personally, I'd hate to take the chance, but most people do.
In answer to your pushrod question, 7.400" pushrods will work, but they're not the ideal length to maintain stock plunger depth. Since the XE-R lobes have a much smaller base circle than stock (1.440" vs 1.553"), you'll need a .0565" longer pushrod than stock to maintain stock geometry. Adding .0565" to the stock 7.38" pushrod length means that a 7.450" pushrod comes the closest.
In answer to your pushrod question, 7.400" pushrods will work, but they're not the ideal length to maintain stock plunger depth. Since the XE-R lobes have a much smaller base circle than stock (1.440" vs 1.553"), you'll need a .0565" longer pushrod than stock to maintain stock geometry. Adding .0565" to the stock 7.38" pushrod length means that a 7.450" pushrod comes the closest.
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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
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
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
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
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If you are asking these type of questions you should do more research before deciding on the T-rex. And the only way to truly know what pushrod length to run is check it, no 2 cars are alike.
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