LS2 with L92 heads makes 460rwhp/446rwtq
05-28-2009, 12:14 AM
#21
This combination hits at the heart of what the L92 heads are all about. Magnificent power curves with "old man" cams. The L76/LS3 intakes help accent low end and mid range torque. Nice work guys. I really enjoy seeing powerful street engines with near stock idle quality at a very low price point.
Richard
Richard
05-28-2009, 09:37 AM
#23
Taking into account they are unmilled and a GM catback they are good #'s. With milled heads and a better catback you would see 480ish.
05-28-2009, 09:40 PM
#25
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So these heads were bone *** stock? Not even upgraded valves? I'm assuming just upgraded springs? At what point is it even worth it to port these heads? Could it be that you actually lose performance by porting the heads with a smaller 364 cid motor?
05-29-2009, 10:39 AM
#28
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05-29-2009, 10:42 AM
#29
Exhaust port is similar to the 317 and 243 heads found on newer cars and trucks. Exhaust flanges are the same so cathedral port headers will still work on them.
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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.
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.
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Stefan N (06-08-2020)
05-29-2009, 11:22 AM
#30
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So, all needed for L92 heads swap is L92 style intake. What else? I've read about intake rockers, only, needing swap to LS1 rocker style.
What about fuel rail and injectors?
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Stefan N (06-08-2020)
05-29-2009, 11:41 AM
#32
Kevin's motor was topped with an OEM LS3 intake manifold complete with LS3 injectors and fuel rails. While the PCM needed to be tweaked to account for the higher flowing injectors, this was an easy bolt-on. The Nick Williams 90mm cable operated throttle body worked flawlessly (as usual).
__________________
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.
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.
The following users liked this post:
Stefan N (06-08-2020)
05-29-2009, 12:22 PM
#33
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It looks I am wrong about rockers. From the picture, LS1 exhaust rocker will work. L92 heads will need L92 intake rocker only, right? Will LQ9 DBW work with L92 intake? It's LQ9 truck intake/DBW TB.
05-29-2009, 12:49 PM
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Kevin's motor was topped with an OEM LS3 intake manifold complete with LS3 injectors and fuel rails. While the PCM needed to be tweaked to account for the higher flowing injectors, this was an easy bolt-on. The Nick Williams 90mm cable operated throttle body worked flawlessly (as usual).
Right, The LS3 uses the newer style EV6 fuel injectors which require a harness adapter; Scoggin Dickey, Lingenfelter, and Racetronix all carry the adapter. If you use an LS2 block, the knock sensors must be moved to the side of the block as opposed to the LS1 placement in the valley; this requires a harness extension for the knock sensors, but the extension also incorporates the extension for the cam sensor, which is moved to the timing cover on the LS2.
If you use the LS3 intake as opposed to the L76, the MAP sensor is relocated to the front of the intake.
05-29-2009, 01:12 PM
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