Two peice main seal crank and LT1
Two peice main seal crank and LT1
I have a lunati crank installed on an LT1 corvette and I was having problems with the flywheel and the starter... The flywheel is a bit bigger than the lt1 crank and thus the starter doesn't line up...
I was supposed to have a one peice rear main seal but, the guy I bought it from gave me a kit to install it on the LT1...
Any suggestions?? are there any special flywheels I can get? OR I just have to use a spacer or something???
I was supposed to have a one peice rear main seal but, the guy I bought it from gave me a kit to install it on the LT1...
Any suggestions?? are there any special flywheels I can get? OR I just have to use a spacer or something???
If there's too much gap between the starter and flywheel teeth, you can fab up a spacer and get it to fit correctly. If the fit is too close, you can have the mating surface on the starter milled down.
Your flywheel bolt circle diameter matches the bolt circle diamter of your 2pc seal crank? I ask b/c older 2pc cranks are 3.57 or 3.58" IIRC, and new stuff is right at 3". Even if it is, you may have clutch issues I believe b/c of the flywheel thickness or relative heights of the PP mounting surface & friction surface.. if that makes sense
.
You'll likely just need a new flywheel meant to adapt 2pc cranks to late model trans/clutch setups & both Centerforce and Fidanza make them I believe
.
http://www.aluminumflywheels.com/ is Fidanza's site & the p# you're looking for is 198661 I believe.
.You'll likely just need a new flywheel meant to adapt 2pc cranks to late model trans/clutch setups & both Centerforce and Fidanza make them I believe
.http://www.aluminumflywheels.com/ is Fidanza's site & the p# you're looking for is 198661 I believe.
PART#471529 is a 153 tooth 12 3/4 diameter flexplate for a 2 piece rear main seal. The stock diameter flexplate is 153 tooth 12 3/4 diameter on the LT1's. If you have the larger 168 tooth 14" diameter, you are gonna need a different starter.
EDIT' I should have asked. Since you put a new crank in your motor, did you have it balanced? If you did, did they balamce it to the bigger flexplate?
EDIT' I should have asked. Since you put a new crank in your motor, did you have it balanced? If you did, did they balamce it to the bigger flexplate?
Last edited by EviLZ28; Aug 29, 2003 at 10:46 PM.
Well if your gonna go the starter route, I would buy a mini torque starter. The correct starter for the 168 tooth flywheel is larger and might cause some clearance problems. A mini torque has both bolt patterns for the small and large flywheels. I have seen guys selling brand new ones on ebay for 89.00 bucks. Or you can get these from summit as well.
The part number I gave you is a gm flywheel. I got the part number form one of my GM high po catalogs.
The part number I gave you is a gm flywheel. I got the part number form one of my GM high po catalogs.
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