solid roller
 

my motor has a solid roller in it and im looking to step down a little since iti s a 265 273 @ .050 id like to step down to something like a 250ish cam. can i use any old SBC cam? or does it need to be LT1 specific?

I have a Joe O spec'd LT1 billet erson solid roller cam for sale if you are interested. The specs are
257 266 @.050 106lsa .640 lift intake and exhaust with 1.6 rockers. I have the exact figures if you are interested. The cam was installed but never used as I went a different route with the engine. $200 shipped.

T oanswer your question. It will need to be LT1 specific cam as I believe the front of the cam is a little different.

You can use a traditional SBC roller cam. You'll just have to get it machined for the optispark. The cam I have is a mild Cam Motion cam. Specs are 248/250 .650/.610 on a 112 lsa.

those specs look very good for a strong 383 :nod:

here is the rest of the combo.....

383
AFR 210 heads
13:1 compression
srp pistons
eagle H beams
eagle forged crank

th400 stall TBD
3.25 gears
325-50-15 mt et street radials

80% street car

thats part of the reason for stepping down in cam the 265 273 @ .050 cam is to big for what i want to do with the car. that and the 2 bolt block even with ARP bolts i don't think will like to be shifted 7500 + like the heads and cam will want.

newbie question i guess, whats the advantages to going solid roller?
valvetrain? do the lifters collapse or something?
if so i thought theyre were companies out there making stronger parts for high revs?

what rockers are you solid roller guys using ??

Shaft here

mine has stud mount 1.5 with a girdle

im not running an opti but still have the water pump does that matter? i run a carb intake and distributor

Not at all. In that case all you need is a roller cam (cam that uses a cam plate to stay in place).

Stud mount. IMO I don't think shaft mount is necessary unless going over 7000rpm.

Able to run a far more aggressive lobe and the valvetrain will remain stable.

:eek:

The reason for the gear is it was going to be a boosted sbc now it is a lt1 later it will be a boosted ls

The front of the cam needs to be back cut for the retaining plate in on the block. You cant use a cam button on these motors. So I'd say no.

Yep....that cam is in the vicinity of mine......little lower on lift though

yea even that other cam will go pretty high........im taking mine to 8000 with out any issue but i converted to billet 4 bolt caps.....

Jesel 1.6 Shaft Mounts

Whats in it for a rear end??

3.25 sounds like a 9" gear for sure... I'd be swapping that out in a hurry :nod:

If you're looking to buy a LT1 specific solid-roller, I've got one for sale thats pretty close to what your looking for. Specs are 248/255 @.050, .640/.652 lift, 106 lsa. PM me for more info if you're interested.