my lt1 valvetrain plan...

[black95maro]

john, your the man! so this cam you speak of, i looked it up on summit and got COMP Cams 07-503-8? this is the one your talking about right? this will work nicely with my rockers and springs? thanks so much for your help!

also, i found a Transmission Specialties torque converter, it is a 2200-2400 rpm stall. does this sound good?

[Tru2Chevy]

Originally Posted by black95maro

john, your the man! so this cam you speak of, i looked it up on summit and got COMP Cams 07-503-8? this is the one your talking about right? this will work nicely with my rockers and springs? thanks so much for your help!

also, i found a Transmission Specialties torque converter, it is a 2200-2400 rpm stall. does this sound good?

It's better than stock, but you'll prolly want a little more than that if you'll be hitting the track often. Best bet when getting a converter is to pick the rest of your combo then call one of the major converter manufacturers and tell them about your car, and what you want. They'll build a converter for your car, not just sell you something off the shelf.

- Justin

[Pampered-Z]

Originally Posted by black95maro

I looked it up on summit and got COMP Cams 07-503-8? this is the one your talking about right? this will work nicely with my rockers and springs? thanks so much for your help!

also, i found a Transmission Specialties torque converter, it is a 2200-2400 rpm stall. does this sound good?

Yup, that's the cam. And it will work perfectly with the spring kit.

And as Justin said, you proabably want a bit higher stall, I say at least 3000 stall. What gears are you planning to run, and what tires? For a bit more out of whole and still keep the car nice for cruising, a 3000-3200 stall and 3:42s would be a nice fit. If you want more ET and less miles per gallon, 3:73s and a 3600-3800 stall. But understand what is really streetable is a personal option. Some people feel 3600 is too much for the street, other want even higher.

JB

[black95maro]

do you guys think i should get new lifters? if so which ones?

[Pampered-Z]

How many miles are on them, if they have under 50-75K they are probably fine? You're not going to be using any big pressure springs, so stock lifters are fine.

If you want to replace them, go to a local autozone and get Melling lifters, same as OE without dealer price ( Autozone should be around $150 for all 16 ). Other option, people are having good results with the new Caddy racing lifters, although they are new so no real long term data on them yet.

Below is MY OPTION ( and that's all that it is, no hard facts ):
I'd suggest staying away from Morel, LS7 and Comp type R lifters. They are all good quality parts, but allot of people have various odd issues. Some people seem to be reporting problems with collapsing or not getting good oiling to the rockers and such with Morel and LS7s, I don't think is a manufacturing problem, I think it's because the stock LT1 pump just doesn't give enough oil pressure. The Comp R's have had problems in the past with broken retainer clips, and I think that is because people put too much lash into them, they are racing lifters and should only go 1/8 past 0 lash - that's how I run mine, but I also run a HP oil pump and heavier spring pressure.

OE lifters are fine, been using them with 306 and 847 cams with no problems at all.

[black95maro]

bringing this back again, I will be getting that cam (COMP Cams 07-503-8) and a tc. I plan to run 3.73s and 275/40/17 or possibly bigger. hmmm still in the development phase... any other suggestions?

[LTb1ow]

Get nice tires, you will not hook.

What size converter did you have in mind

[black95maro]

Originally Posted by Shownomercy

Get nice tires, you will not hook.

What size converter did you have in mind

what tires can you suggest? i have bald gforces now. and I was thinking about 3K? maybe a little bigger. not quite sure. looking for some guidance.

[LTb1ow]

I run a 3400 ish in mine, seems to be fine for DD.

[black95maro]

ok what about tires? i think i want to do either bfgs or nittos, not sure if i should go bigger then 275/40/17...

[sweetbmxrider]

what size wheels?

[LTb1ow]

Yea, and um give serious thought about your rear end...

[black95maro]

17s yea i did think about that. i thought maybe when i do the 373s i would do c clip eliminators because those things scare me. but a stronger rear would be in the future. not sure where i would go with that.

[sweetbmxrider]

width....9.5?

[black95maro]

same wheels as you. ss wheels. i'm getting them powercoated black. but yea they're 9.5" wide i believe?

[black95maro]

would a 3500-3800 stall be to much?

[LTb1ow]

I ended up with a 3400 ish. Works for me.

[black95maro]

Originally Posted by Shownomercy

I ended up with a 3400 ish. Works for me.

are you cammed? what's your setup?

[LTb1ow]

LT1 came with a cam from the factory no?

[black95maro]

Originally Posted by Shownomercy

LT1 came with a cam from the factory no?

it's a rare option lol seriously...

[LTb1ow]

With a stock cam I would say around 2800-3000 ish.

[Pampered-Z]

If the car is more of a DD then 3200 is fine, if you want more track performance go up on the stall.

97TransAm's car has a big cam and mac headers, 3:42 gears, 3600 Yank convertor and MT drag radials is running fairly consitant 12.2s ( But Ron can also drive and is a seasoned bracket racer!) I would think that 3:73 should get him into the 11s, but the car does see allot of highway driving (for now).


I wouldn't be worried about a C-clip elim. Since you have rear disk the axle are't going to come out like on a drum brake car.

[LTb1ow]

Phew, on a stock cam? 3200 will run out of steam real fast.

[black95maro]

i won't be running the stock cam. I'm going with the cc503

[LTb1ow]

Eh, go with the 3400 then.