Opinion on cam for 427
12-09-2009, 07:47 PM
#1
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Opinion on cam for 427 does this cam seem appropriate? street car, no drag strip time ever.
comp 244/255 .630/.632 114LSA
Here's the motor:
Engine:
Block completely resleeved and machined by Steve Demirjian @ Race Engine Development using a complete Darton MID sleeve setup (Does more darton sleeves than anyone in the country, THE premier place for all Darton LS sleeves). Cost about $3000 alone to get the bare block ready.
http://www.raceenginedevelopment.com...4927/index.htm
Shortblock:
Block is 4.125" Bore
4.0" Eagle Forged Crankshaft
6.125" Lunati Pro-Mod H-beam Rods
JE Custom Forged Pistons (flat top /w valve reliefs)
Billet Steel Main Caps / ARP Main Studs
Ported LS6 Oil Pump
HexaJust Roller Cloyes Timing Chain
Comp OE Replacement Hyd Roller Lifters
Top End:
Total Engine Airflow fully ported 237cc AFR Cylinder Heads
Stainless valves, double extreme springs, approx 70cc
ARP Head Studs
Chromemoly Pushrods
Yella Terra Ultralite 1.7 Roller Rockers
42lb green top injectors
Intake:
Ported through TSP Fast 95mm Intake Manifold/95mm Throttle Body
Fast Toys Performance 104mm lid
Fast Toys Ram Air
Exhaust:
TSP 1-7/8" Ceramic Coated Headers
TSP Catted Y-Pipe
Flowmaster 4" merge
Mufflex 4" Catback with Magnaflow Muffler
comp 244/255 .630/.632 114LSA
Here's the motor:
Engine:
Block completely resleeved and machined by Steve Demirjian @ Race Engine Development using a complete Darton MID sleeve setup (Does more darton sleeves than anyone in the country, THE premier place for all Darton LS sleeves). Cost about $3000 alone to get the bare block ready.
http://www.raceenginedevelopment.com...4927/index.htm
Shortblock:
Block is 4.125" Bore
4.0" Eagle Forged Crankshaft
6.125" Lunati Pro-Mod H-beam Rods
JE Custom Forged Pistons (flat top /w valve reliefs)
Billet Steel Main Caps / ARP Main Studs
Ported LS6 Oil Pump
HexaJust Roller Cloyes Timing Chain
Comp OE Replacement Hyd Roller Lifters
Top End:
Total Engine Airflow fully ported 237cc AFR Cylinder Heads
Stainless valves, double extreme springs, approx 70cc
ARP Head Studs
Chromemoly Pushrods
Yella Terra Ultralite 1.7 Roller Rockers
42lb green top injectors
Intake:
Ported through TSP Fast 95mm Intake Manifold/95mm Throttle Body
Fast Toys Performance 104mm lid
Fast Toys Ram Air
Exhaust:
TSP 1-7/8" Ceramic Coated Headers
TSP Catted Y-Pipe
Flowmaster 4" merge
Mufflex 4" Catback with Magnaflow Muffler
12-23-2009, 10:44 PM
#5
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i dont think so....thats for a 427...though it would be huge in a 346, displacement eats up cam in a sense.....im no expert with 427's but that cam looks about perfect to me.
12-24-2009, 11:47 AM
#6
A 427 will need a cam that has 13-15 degrees more overlap than a 346. Your cam has 21.5 degrees of overlap at .050". That would be like running a 234/238 114LSA cam in a 346. Not exactly small or mild. Personally, I think the cam is way too big if it doesn't see the track. If a 224/228 114LSA cam is considered easy to drive and live with every day in a 346 (-2 degrees of overlap) you'd probably want something more like a 238/242 114LSA. That has 12 degrees of overlap (14 degrees more).
__________________
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.
12-26-2009, 12:09 PM
#7
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I wasn't sure if I should just run it and swap if I wasn't happy or just swap now. The car will not see the track though so I did think it was a bit big.
