'88 vs. '87 TII Crank

[Shelby85Charger]

Both are in great condition and they both came out of an Innercooled Daytona. Which one is better to use for a High Horsepower motor?

And which Block to use, '88 vs. '87?


Please help!!

Thanks!!

[glhsken]

They are the same... block and cranks

[Shelby85Charger]

How can you tell the difference between a TI Crank and a TII Crank? Both being Stock Cranks?

Is there any part numbers that would tell me anything?

[glhsken]

TII cranks, being forged, you can see the machine marks in the counter weights. The cast cranks are just thet.. cast and and have that rough cast feel.

[Shelby85Charger]

And the recommended one to have for higher horsepower is.....

[rescu2000]

According to the wisest of wise, Gary D., the cast is probably better, given it's lighter weight and lower rotational mass. However, the exception to this would probably be if you are putting it in a pre 89 block. Then I might go with the forged. This would HELP POSSIBLY with the flexing in the lower end. I'd really like to hear other opinions on this though. I'm pretty new and basing all of this on what I've read. But I have read a lot.
Rescu2000

[flybyuin2.2]

i personally like using steel cranks(no flex) and can take much more abuse especially on a 16 V motor(high rpms) but not really needed in a 8 V, the difference in steel is a thick parting line where cast has a thin line, the metals sound totally different too, i don't get that ring with a cast like you do with a steel 1.

[glhsken]

Quote:

Originally posted by Shelby85Charger And the recommended one to have for higher horsepower is.....

Depends on your power level.

I was running the cast in an 88 block. But I was looking to up the power. so I was going to go with either a steel crank in an 88 block, or a cast 2.2 crank in a common block. I have both setups here at home.

Gary says the cast is FINE for common blocks, not pre-commons. I like th lower weight of the cast but am looking at turning the wick up another notch this time

[Shelby85Charger]

Ken,
I'm looking to build at least 250 plus HP. I would this SC to run. I have an '88 Forged crank out of a '88 Daytona SHELBY Turbo Z.
I can also get the block. I still have the '87 motor, complete. What would you recommend? If I should look for a Steel crank that's what I'll do.
Also, would you recommend an '89 Common Block or stay with what I have?

Thanks!!!

[glhsken]

Forged is the steel crank.. The 88 or 87 block with the steel crank will survive in a light "L" bdy just fine.

Common block is always the BEST option.. But with a forged crank you should be able to make 250-300hp with no issues.

[ieatrice]

So, does anyone else think a forged crank would help with the flexing?

Quote:

Originally posted by ieatrice So, does anyone else think a forged crank would help with the flexing?

Crank walk, block flex, blah blah blah. I've had nothing but good results with the pre-89 blocks. I don't ever plan to push 400 hp through any of these motors so they work for me. I've put roughly 325 hp give or take through a couple with absolutely no problems. I don't doubt the CB is stronger, but the the "oldies" are plenty stout for me. I also use nothing but the steel cranks.