NotSlowfiveoh

This is my first post on here. Great forum anyway...

I had a S10 with a 350 in it and heres a list of parts...

350 4 Bolt main.0040
New Crank, rods
Clevite 77 bearings
A very large cam ( not sure the specs but it idles rough)
9.5:1 compression pistons
Old style 350 heads with new springs
1.5 roller rockers

ANyway I was just making sure that when I transplanted this engine into a 1990 Z28 with Tune port and auto trans. that the intake system and everything would bolt right up.

Also where do I go to get a tune for this cam and how much will it be?

Do you think this combo could get me in the 13's?

Thanks for helping me out I am excited to get into the camaro community!!!

iansane

Your biggest problem is that the four center holes on the intake manifold will be on a different angle than the heads.

Well that and the computer tune.

respectirocz

i beleive you can take the intake manifold from the 90 and re-drill the 4 center holes to bolt up with the old style heads

but i could have that the other way around (old style intake on new heads)

diehardgm

Better double check those cam specs! If it is on a 112 lobe seperation or higher you will probly be okay. If it is lower, chances of it working with the computer are very slim.

onefastgta

With the right tune, the size of the cam doesn't matter, to an extent. I run a 242-254 .585 .614 110lsa cam and mine runs ok after lots of tuning.

You will need a scan tool or some way of capturing data to send back and forth to the chip burner of your choice.

NotSlowfiveoh

Okay I will check the cam specs when I get time. Because it is a custon grind from a company called LAzer cams.

So if the Lobe seperation will work, can't I just call a PCM tuner and tell them exactly what I am running and them get it at least close?

NotSlowfiveoh

Okay so the LSA on the cam is 108. SO what am I getting into, should I just swap cams while I have the engine out? If so what cam would you recommend?

onefastgta

The lsa isn't the problem, it's the lsa along with the duration at .050 that tells how much overlap the cam has. What is your duration at .050?

NotSlowfiveoh

Duration advance
in. 275°
ex. 280°
Duration .050
in. 225°
ex. 230°
gross lift
in. .483
ex. .471

onefastgta

That cam will work. It will take some patience in tuning though.

Dave89IROC

as for the bolt holes, if you get a 85 F-body lower intake, the bolt holes are the same, and still has the same egr, aluminum head L98 vette intakes had the same intake bolt holes also, but had the egr plumbed externally

sharpe

Being an LS1 guy, I was thinking, "Yeah, right. I bet it's a real big cam. "
But, damn you weren't kidding. 225/230 with a 108 LSA? I bet that thing's lope will rattle the fillings out your teeth! That's pretty good sized for an LS1.

Just curious, I have a friend with an L98, and the fist thing he did was carb it, yet you choose to keep your TPI and you have a big cam? (He cammed his too and had a local shop do his heads, but I don't think his cam was nearly that size just judging form the idle.) I don't know much about the thrid gens, I'm just curious.

NotSlowfiveoh

Well I am just trying to put this engine from the s10 into the camaro so I can drive it everyday. This motor was carbed and had a Th350 trans. with 3:73's. All that equals up to not a daily driver.

I have pretty much decided that I am going to go for a mostly ALL torque cam since the TPI system is known for torque. It won't be that hard to change the cam since the engine is on a stand and I have to pull the intake and all off to swap to the TPI.

What cam would you guys suggest?

P.S. Yeah you should feel that cam in a single cab short bed 2wd S10. I got a few look and then they couldn't see me LOL.

onefastgta

Alot of people don't have the patience or knowledge to mod a tpi car, that's why they go carb. It's all in the total combination of parts.

92blue

If your goal is for the car to be a daily driver, and you are looking primarily for torque, I would change cams. That cam is going to peak well above when TPI falls flat on its face (happens at around 4800 RPM or so). Picking something along the lines of 212...218 would be a better choice for your needs.

That cam would be a mismatch for a daily driven TPI motor.

A 112 LSA is preferable and easier to tune because it will pull more vacuum at idle. theres no reason why you can't run another LSA though.

The 85 and 86 TPI manifolds will both bolt up to old style heads without any modifications.