RDG5500

While looking through Chevy Performance book (2015 PN 19330145), I noticed the only difference between an LS3 6.2L (PN 19301326) & the LS 376/480 (PN 19301358) is the camshaft. The LS3 puts out 430HP has PN 12623063. The LS376/480 puts out 480HP with PN 88958753. Can a jump of 50HP be that easy??

wayback

Yes.

clearwaterms

that being said, what would it take in a c6 to get that 50HP? A tune? headers? something else?

Don-Vette

Absolutely it will ! ! Throw in some head work while you have them off,(larger injectors if your really serious ) some headers and hi flow cats, CAI and a good tune. Depending on cam,this combo is good for over 100hp easily IMO.

WA 2 FST

Yep, it can. My son's LS2 "07 coupe with A6 trans picked up over 60rwhp with cam and headers (hi-flow cats). I'm guessing that's north of 85hp at the crank.

clearwaterms

and "i assume" a tune.

db2012gs

A tune is a given with a cam change because you are changing the valve timing with increased lift and duration, therefore you have to change the injector pulse width and other variables. In addition I would recommend upgrading the valve springs and pushrods as well. Then of course there is gaskets, oil, coolant, etc. It's NEVER just a cam...lol

clearwaterms

that was my point to it all.

Can a simple cam swap...? to which the answer is "yes, but..."

petsur

For me, SMALL cam, headers and tune resulted in 99HP. From 370 to 469 at the wheels.

WA 2 FST

My answer was in direct reference to the OPs ? about a GM crate motor where it is claimed to post a decent gain with the difference being a cam. If purchased in conjunction with a GM PCM, it will be _tuned_ for that cam.

Would you swap a cam in an carb'd application without rejetting the carb? Of course not. Swap a pulley on a blower or adjust the wastegate on a turbo to pick up power without a retune? Of course not.

Suds

No, any bolt on or cam will not be optimized with out a tune. You may have some gains, but you need a tune to get the full potential.

Tomorrow is Friday, Driving the Vette to work, NPP open.

tennblkc6

ditto...fusions will be on blast also.

RDG5500

Thanks for the replies fellas. My son & I figured it would need other items (PCM, new lifters, & tune ). Just wanted to verify our thoughts.

Suds

If you want a bit more out of your car, go talk to local speed shops and find out what they offer.

brewcitygymratt

I picked up 90rwhp with AI ported stock 243 heads, spin monster cam and ud pulley on a 90k mile ls2 a6 with a stall.

Don-Vette

Go bigger not smaller,more lift and duration. Cam swap should be around $1700-$2200

petsur

Depends on what you want. I went small, gained 100 HP, nice lumpy idle, and excellent street manners, and pulls out of a corner on road courses like a bitch when RPMs are low. 6th gear at 1200 RPM no bucking or surging. I think the PFADT headers help quite a bit down low where I wanted the big gains. Not a drag race cam, but will boogie.

WEARE1

I was quoted 5k for heads and a custom cam at the local.speed shop. We were just nabbing when the headers and exhaust were installed so I'm not sure what all it "included" but that was the cost I was given for the work.

96GS#007

Curious what you went with. A small cam typically won't be lumpy at idle since the durations aren't extreme and the LSA will remain pretty tame.

speedway01

Very easy depending on the cam you could pick up more then 50hp.