need help on my lsx build!!
Thread Starter
Registered User
Joined: Jul 2014
Posts: 15
Likes: 0
From: indianapolis in
need help on my lsx build!! I'm building a cast 6.0 truck motor I need some tips. So far I have all forged internals and a set of the gm small bore l92 heads brand new. Need help on cam selection and if I need to upgrade any of the valve train components. Looking to be at 500-550 n/a and 700 on spray.need a good cam tip also it will be carbed and be back up with a th400
Thread Starter
Registered User
Joined: Jul 2014
Posts: 15
Likes: 0
From: indianapolis in
right now its just the stock l92 small bore heads by gm high performance all stock components heres the specs
•LS3/L92 Port Configuration
•''As cast'' runners and combustion chamber
•15? valve angle
•Assembled with 2.00'' intake and 1.55'' exhaust valves
•250cc intake port and 80cc exhaust port
•70cc combustion chamber
•Intake flow - 280 cfm @ .600'' lift / Exhaust flow - 180 cfm @ .700'' lift
•Beehive valve springs
•Uses LS3/L92 style rocker arms (offset)
•3.890'' minimum bore size
•Uses LS3/L92 style intake manifold
and ys i want to acheive 500 at the wheels i know i need to go custom grind just dont know numbers and if any head work in needed this is my first ls build
•LS3/L92 Port Configuration
•''As cast'' runners and combustion chamber
•15? valve angle
•Assembled with 2.00'' intake and 1.55'' exhaust valves
•250cc intake port and 80cc exhaust port
•70cc combustion chamber
•Intake flow - 280 cfm @ .600'' lift / Exhaust flow - 180 cfm @ .700'' lift
•Beehive valve springs
•Uses LS3/L92 style rocker arms (offset)
•3.890'' minimum bore size
•Uses LS3/L92 style intake manifold
and ys i want to acheive 500 at the wheels i know i need to go custom grind just dont know numbers and if any head work in needed this is my first ls build
Ugh 250cc runner on top of a 2" valve and a carb? That might be a little tricky to spec a good cam. I would definitely go custom so you explain the entire build and goals, and have them spec a cam for you. Personally, I would probably be in the neighborhood of 230/240 durations and probably a tight 111 LSA.
Thread Starter
Registered User
Joined: Jul 2014
Posts: 15
Likes: 0
From: indianapolis in
Ugh 250cc runner on top of a 2" valve and a carb? That might be a little tricky to spec a good cam. I would definitely go custom so you explain the entire build and goals, and have them spec a cam for you. Personally, I would probably be in the neighborhood of 230/240 durations and probably a tight 111 LSA.
Trending Topics
Well, nothing against that cam but it was meant for an LSx with much smaller ports and a plastic manifold. With LS3 ports, LS1 valves, and a single plane intake, it may not work as well.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
