402 build looking for some Cam advice
Thread Starter
Teching In
Joined: Jun 2022
Posts: 4
Likes: 0
402 build looking for some Cam advice Trying to pick a cam for my strip/street project. 2001 mustang right at 3200lbs. Powerglide and a 3.89 rear for now. Stock bore iron 6.0 block k1 rods and crank, wiseco +3cc pistons. The heads are some blueprint ls3 cncd with a 75 Cc combustion chamber a a 270cc intake port. Compression ends up right aroind 11:1 Probably too much head but they were affordable.
All that being said nitrous is the power adder of choice. Goal is to get pretty serious with the spray. I am trying to pick something i wont have the valvetrain apart every other weekend and reliable. Not opposed to off the shelf grinds. Not trying to be cheap but I'm not looking to overpay for a secret sauce cam without fully advertised numbers.
Thanks.
All that being said nitrous is the power adder of choice. Goal is to get pretty serious with the spray. I am trying to pick something i wont have the valvetrain apart every other weekend and reliable. Not opposed to off the shelf grinds. Not trying to be cheap but I'm not looking to overpay for a secret sauce cam without fully advertised numbers.
Thanks.
TECH Enthusiast
Joined: Feb 2018
Posts: 640
Likes: 297
From: Michigan
I would be looking at Cam Motion and BTR's stroker cam offerings (shelf cams) for LS3 port heads if I were you. Either will be gentle on the valvetrain, and probably go 20k miles before needing to check the valve springs.
If I remember correctly, BTR might even have a stroker cam made specifically to work well with nitrous.
If I remember correctly, BTR might even have a stroker cam made specifically to work well with nitrous.
TECH Fanatic
Joined: Aug 2009
Posts: 1,845
Likes: 255
From: Coast of San Mateo County Between Pacifica & HMB
Cam Motion fully publishes #s.
3 stroker ls3 cams on shelf.
Hot street stroker 239/247 113*+3*
Stealthy stroker 230/242 117*+ 5*
Torquey stroker 232/242 114*+4*
I would call and have a conversation I am sure they would be happy to tweak according to how much spray vs
how much street manners are important.
My opinion and worth what you paid for it is, btr uses huge exhaust splits on NA applications which may be
beneficial for large spray but make tuning and street driving more challenging by comparison.
3 stroker ls3 cams on shelf.
Hot street stroker 239/247 113*+3*
Stealthy stroker 230/242 117*+ 5*
Torquey stroker 232/242 114*+4*
I would call and have a conversation I am sure they would be happy to tweak according to how much spray vs
how much street manners are important.
My opinion and worth what you paid for it is, btr uses huge exhaust splits on NA applications which may be
beneficial for large spray but make tuning and street driving more challenging by comparison.
TECH Resident
Joined: Jun 2011
Posts: 936
Likes: 472
Cammotion will make a custom grind for same price as a shelf-cam I believe. And they'll verify it across camdoctor and provide the results for that exact camshaft. You have a very unique setup and goals between the stroker, LS3, and spray requirements. Granted, there are so many variations of aftermarket cams out there, that you can find one close if you look hard enough; but for the price, might as well get something specifically ground (and have all the numbers to boot).
That setup will like a lot of bias on the exhaust to get the spent gasses out. But those can be streetable depending on the resulting valve events chosen.
That setup will like a lot of bias on the exhaust to get the spent gasses out. But those can be streetable depending on the resulting valve events chosen.
Another vote for Cam Motion. My cam is in an LS7, in a 3,250lb. A4 C5. It's ground to Allan Futrals' specs by CM. 232°/250°, just over .600" lift, on a 112° LSA. I have 52,000+ (yes, fifty two thousand) miles on my PAC dual springs. If that isn't easy on springs, I don't know what is. With a power adder on a 402, I'd probably go a bit wider on the LSA, maybe 114°-115° LSA, and stay near .600" lift. A 402 should be able to handle around 230° duration I, 240° E. By all means, get some professional opinions from CM, and whoever. Just don't get too many .02s, or you'll get a lot different .02s!!!
TECH Resident
Joined: Jun 2011
Posts: 936
Likes: 472
Another vote for Cam Motion. My cam is in an LS7, in a 3,250lb. A4 C5. It's ground to Allan Futrals' specs by CM. 232°/250°, just over .600" lift, on a 112° LSA. I have 52,000+ (yes, fifty two thousand) miles on my PAC dual springs. If that isn't easy on springs, I don't know what is. With a power adder on a 402, I'd probably go a bit wider on the LSA, maybe 114°-115° LSA, and stay near .600" lift.
Trending Topics
Thread Starter
Teching In
Joined: Jun 2022
Posts: 4
Likes: 0
Working out stall and rear gear atm. I am lucky and TSR is local for a glide rebuild and case recertification. The long duration on the exhaust and the earlyish exhaust opening with a single plane killing low speed torque is a concern at the moment for any street driving. The converter will be key in this I think I may end up with a tighter converter than optimal on the street to limit slip at the big end. All the feedback has been helpful.
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
