Nsomnia

I bought an 87 camaro that was origonally a v6 but he had it set up for a sbc. Transmission and rearend came out of a 85 z28. When I went to put the flywheel on my engine today, it was a 3 inch center hole vs pre 86 3.6 inch or whatever it is. Its also 12 1/2 inches vs 14 1/4 and my clutch is 10 1/2 I beleive.

So my questions are, if I go and buy a pre 86 14 inch flywheel, will my clutch and pressure plate and all that still work, and will a 14 inch flywheel even fit in the T-5 bellhousing where there was a flywheel 2 inches smaller sitting in it.

sofakingdom

iTrader: (1)

No, the larger size flywheel will absolutely NOT fit in the T-5 BH.

If you have a 10.4" clutch, it will fit on a 12.8" flywheel.

If your motor is a 85-back, as it would seem, get the flywheel for 83-85 Camaro/Firebird V8 T-5. Don't worry about what size they say it is, how many teeth, "internal" or "external" balance, or anything else; just go by application. You will find that there are 2 listed. One is for the low-perf grocery-cart cars, with the weenie LG4; the other is for the high-perf L69 cars. The difference is the weight: about 22 lbs vs about 16 lbs. The gutless cars used the heavy one so that the driver wouldn't stall the motor quite so easily trying to take off from a traffic light or whatever. You'll probably want the lighter one.

Nsomnia

Thanks thats almost exactly what I was looking for. Does anyoneknow the flywheel size out of an 85 z28? That way I can search for used flywheels rather than blowing 200 bucks on a new one.

sofakingdom

iTrader: (1)

Well there's 2 sizes. It must not the large size (14", 168 teeth); what size could it possibly be?? Look for a used one of those. That's the one you need. Trying to buy a used flywheel that you don't know what it came off of, is a RISKY business at best. For example, you might get one with the right tooth count, but something else wrong with it such as balance, bolt pattern, thickness, etc., because it's for a different motor. That's the reason for the instructions above.

Nsomnia

Well my shop teacher got me a flywheel for a good price, 14 inch ring gear diameter however. I dunno if itll fit yet because as I was putting on the pressure plate and clutch. The clutch is a 14 spline 9 inch, whereas my input shaft is 26 spline and those only come in 11 inch as far as ive seen.

I guess my only options are

A) find a different pressure plate and clutch from a sbc pre 86 manual
B) Swap in the v6 t-5 WC I just bought and grind down the input shaft so it doesnt drag the clutch and modify the slave cylinder ball-ended rod thing. At least then id have a 4.03 first gear vs 2.95 but that would be really badly rigged because the clutch wouldnt have much to grab.
C) Find someone who sells 9 inch clutches at a good price with 26 splines.

Boy what a project. Woulda been cheaper to buy a v8 camaro in the first place

Jproz1167

iTrader: (3)

hey if you need a pre 86 305 T-5 flywheel I have one for 40.00 plus shipping

Nsomnia

What diameter is it and how about the pressure plate bolt diameter? And my clutch is a bigger worry right now, I think the 14 incher might fit?

Jproz1167

iTrader: (3)

whatever the stock 83-86 5speed fly is, is what diameter this is ... you won't get a larger diameter flywheel then this in a T-5 bellhousing. It is just the stock 153 tooth flywheel for 2 piece rear main blocks.

Jproz1167

iTrader: (3)

this flywheel was mounted to my 82 LG-5 when it had a 5 speed in it. I took it out only because I put a 1990 350 1 piece rear main engine in the car. So yes I'm positive it's for a 2 piece RMS and a 5 speed.