DOUBAD RACIN1
Member
- Joined
- Mar 13, 2017
I was wondering if a 84-85
Hot air turbo engine crank work in a
86-87 109 block
Hot air turbo engine crank work in a
86-87 109 block
Eagle forged crankIt would, but why? There are so many forged cranks out there now. If you you bought a used crank for $100-150 then send it to a shop to get magged, checked for straightness, polished , and maybe even turned. You may have another $100 to 200 in it and would be very close to the price of a new forged stock or stroker. Granted it still will not be a drop in piece as it has to be put thru the paces before being put into service and balanced with your rod/ piston / flex plate setup.
It would, but why? There are so many forged cranks out there now. If you you bought a used crank for $100-150 then send it to a shop to get magged, checked for straightness, polished , and maybe even turned. You may have another $100 to 200 in it and would be very close to the price of a new forged stock or stroker. Granted it still will not be a drop in piece as it has to be put thru the paces before being put into service and balanced with your rod/ piston / flex plate setup.
The turbo crank in the 85 is the same as in the 87. The heads are the same as well.No i have a crank in my messed up hot air engine,
And i have a 109 block heads, new rods and pistons. Just need crank to start build...,
I was wondering if a 84-85 Hot air turbo engine crank work in a 86-87 109 block
I would have to disagree about the HA block being as strong as the 109 . All you have to do is look at the valley of each of them . Please explain how you feel the HA block is just as strong as the 109 .You will always get someone telling you to convert to IC set-up, without understanding your goals.
My understanding is that you are building a hybrid to cruise, and want something different. You have already put in a lot of custom work and you are happy with the set-up. The engine is damaged but you are well on your way to you overall goal.
Yes, the 84-85 crank will fit in a 109 block, and vice versa.
No, the HA block is not “weaker” than a 109.
Yes, some have successfully used NA cranks for low/mild HP set-ups.
Yes, a forged crank is obviously stronger but there is additional work/cost because they are internally balanced.
heres duttweiler's statement ...http://www.hotrod.com/articles/hrdp-1302-how-strong-is-a-standard-buick-v6-block/I would have to disagree about the HA block being as strong as the 109 . All you have to do is look at the valley of each of them . Please explain how you feel the HA block is just as strong as the 109 .
I believe he was referring to the 109 block . And yes there is really nothing different from the NA 109 and the turbo 109 just one hole separates the 2 .heres duttweiler's statement ...http://www.hotrod.com/articles/hrdp-1302-how-strong-is-a-standard-buick-v6-block/
you should re read it ..I believe he was referring to the 109 block . And yes there is really nothing different from the NA 109 and the turbo 109 just one hole separates the 2 .
It wasn't really a feeling but am sure the OP appreciated the reply.. . . . Please explain how you feel the HA block is just as strong as the 109 .
It’s not for meyeah ... just don't forget all you have to do to make that crank work ... what you gonna run for a balancer and flexplate ?
It’s not for me
It’s the OP he is going to do a rebuild
Oh you’re trying to test me.Doesn't matter .. my point is your gonna have a lot more into that crank than you think ... been there done that..
on a stock type setup 11.50 or slower... just run a stocker .. no point in getting stupid on parts you don't need and that are going to cost you in other areas...
10's i'd say yea forget the stocker and just go forged..
its $450 for just the crank .. but then how much in the "EXTRA'S" to make it work .. balancing, Mallory metal, balancer , flexplate, etc etc I bet he has another $500 in the crank on top of the $450 .. maybe more !
Oh you’re trying to test me.
Just because I’m new here don’t mean anything.
So you are say he can buy a stock crank and just slap it in?
No Machine work or balancing needed?
Yeah he can use his stock flywheel and balancer.
That about it.
What you want me to read Old man?Keep readin Grasshopper