perfect.ta

Hi I recently bought a 99 c5 coup which is converted to a c5 z06 . Accept the motor . The car is an m6 stoke ls1 and full bolts on . I just got a cross a pair of 243 heads end up getting them . My next step is the hardest . I wanted a cam that would idle just like stoke . And still be able to smoke some bolts on 5.0s .Or else would just snapping these heads with a good tune would do the job . Like I said where am from there are many 5.0s I just wanted to have fun with a sleeper c5 and claim that it's a c5 zo6 . Stoke bolts on period . . Can any one help me with the cam size

Darth_V8r

iTrader: (4)

I would suggest leaving the cam alone. Here is a list of mods that I have seen get a LS6 with stock cam and stock bottom end well into the 400s on several motors:

1-7/8 headers
High ratio rockers
Psi1511 springs with titanium retainers
Fast102 and 102 throttle
Electric water pump
Electric steering conversion
Light clutch
Short belt with tensioner delete

Cam will be cheaper, but with the above list, you can honestly say it is bolt ons only. Although some might argue the springs. I would not. I have never seen a vacuum pump added to a similar list of mods, but I will only help if you did that also.

Another option is to have AI do a really good valve job on the 243’s. It would be stealth but you would be lying at that point to say it’s a stock motor.

HioSSilver

iTrader: (8)

And I'll add gear to a fine list of bolt ons.

If you can't outrun bolt on 5.0s with what will end up being a 29xxlb car after modd with a solid bolt on ls1 you need to sell the car and take up knitting.

big hammer

I used to gape FBO coyotards all the time in my bolt on ls1


Ported fast 92,92, ls6 MAF, 92mm CAI, 1-7/8 headers, 3" X pipe true duals, gears, springs and rockers should get you there and drive like stock.

perfect.ta

Dam u guys got really amazing tricks. Iv never thought of them . But seriously I live over seas getting all those parts plus shipping them would cost a lot. I spoke to Texas speed . They recomended a 224. Cam with an LSA 114 . But I still think that that cam would sound agrassive at idle. Second option was a 220R cam . . Where I live we have a TSP dealer and he recomended a 228 or 233. Which is really big and he said that's the only way to get them 5.0s . Reason why I didn't wana go that big is most cars here are 5.0 and shelbys . And my other 2 cars that I own are cammed c6 z which they are afraid of and the other is an LSX 454 trans am . Which m not having any fun with ither . So this time I wanted to do a sleeper. C 5 . Again looking forward for more options

Darth_V8r

iTrader: (4)

if you are pretty set on a cam, then 220/230-117.5+2.5 will be stealthy (maybe a very slight tone, but no chop) and will support good RPM. Should have a good flat torque curve and make peak HP at 6500, safely rev to 7200. That is not a shelf cam, so you would need to call or email someone like cam motion to grind it for you.

I would still do the psi1511 springs with that cam and TI retainers for stability. And the rear gear as a minimum. Next mod on the list would be a lighter clutch, which is a very stealthy mod (undetectable), but will surprise you how much it wakes the car up.

Edit - you don't need a bigger cam to get the 5.0's If you did everything in this post, you'd surprise yourself and the 5.Bro's

HioSSilver

iTrader: (8)

If you own those 2 cars you can surely afford some decent parts and shipping.

Now the next order of business is to go kick that dumbass tsp dealer in the nuts real good so he can't breed anymore stupid people.

ragtopz28

iTrader: (57)

Weight reduction is as stealth as it gets! I have a friend that has a stone stock SBE (bolt ons and a tune) Camaro that runs 11.1

wannafbody

iTrader: (2)

First thing I'd do is send those 243 heads to TSP and get stage 1 porting.

perfect.ta

well I was gonna change the stoke clutch any ways so what would be a good brand light clutch I should get . And about the heads springs the heads that I bought has double .650 springs with titanium retainers . Should I still change them to psi 1511 .

Darth_V8r

iTrader: (4)

Nah if you already got springs on them and set just leave them. RPS makes a tremendous light weight but daily drive clutch. I remeasured mine after 15k miles and it was still at the original thicknesses on every disc and floater. But it is expensive. If cost is an issue, McLeod RST is good

HioSSilver

iTrader: (8)

Yes you should still change those springs.

I'd be willing to try the new spec clutch with the aluminum housing. I think McCloud might have some similar. Get a aluminum flywheel to.

perfect.ta

yeah I know the RPS are expensive and great clutches. You guys are making me think different path and I like it . Ok how about the clutch and I would use a thin cometec head gasket . I was thinking of a .030 . Cometec gasket would that also be helpfule

big hammer

Even if you put a cam in it, all these mods will work very well with it

bbond105

Go with a .040 Cometic gasket. The .030 is too tight.