can someone reccomend me a cam for my 408 (250-260 range)
02-23-2007, 02:40 PM
#1
TECH Resident
Thread Starter
iTrader: (28)
Join Date: Sep 2004
Location: norcal
Posts: 987
Likes: 0
Received 0 Likes
on
0 Posts
can someone reccomend me a cam for my 408 (250-260 range) im ordering a 408 today and i dont know where to start all i know is that i want somethin in the mid 250's on a 112. this motor will b built to use alot of nitrous and i will be on 91 pump gas. and also i will be getting the l92/l76 set up.
post up with some ideas
post up with some ideas
02-23-2007, 04:03 PM
#2
Im running a Crane 250/266-.635"/.635"-112+6 but with my Comp Pro Mag.1.75 roller rocker arms it raised the lift to 650" This is in my LS2 418cid. with a N.O.S. Pro Fogger system.http://i6.photobucket.com/albums/y21...Picture084.jpg
http://i6.photobucket.com/albums/y21...Picture085.jpg
http://i6.photobucket.com/albums/y21...Picture085.jpg
02-23-2007, 04:39 PM
#3
Right now, it doesn't look like the cams that work well on cathedral-port 408s will necessarily work well on the L92 head 408s. The L92s don't seem to respond to overlap like the cathedral port heads. For a *****-out 408 with cathedral port heads, you'll typically see 250/256 110-112LSA, but so far, it looks like the 4.0" bore motors with L92 heads get kinda cranky with more than 15 degrees of overlap at .050" (which is not very much). Lots more testing needs to be done.
For this application, maybe a 239/246 .649/614 114LSA +3 would work (especially keeping the nitrous in mind).
For this application, maybe a 239/246 .649/614 114LSA +3 would work (especially keeping the nitrous in mind).
__________________
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.
