5.3 flexplate.. with spacer between flexplate and converter.. enlongate holes for converter bolts

or

6.0 (4l80e) flexplate with spacer between crank and flexplate (as it's flat) and holes should line up for th350/th400 converter, they did in my case.

 

JW in fl has just what you need. Talk to Eric and even drop my name. l have one on my 6L race car and one my 5.3 dyno

 

Here is what I had to do using the 6.0l Flexplate & Spacer..



This is on back of the 408 in my MCSS, bolted to is is an 8" ATI 4500 Stall for the TH350 I have.

 

hi the merv.i see u made the torque converter holes oval.did u have to use a certin spacer or hub for the converter.it looks like u used stock truck flexplate and nothing else am i correct or am i missing something.i am putting a 5.3 in front of a th350 and wont to make sure i have everything so i have no saprizes.thanks

 

Yup..stock Flexplate with the Spacer & Bolts, just ovaled the Holes. Bolts up to my TH350 with no issues and proper clearances.

 

ok i just wanted to be sure.i have a truck flex plate that has a spacer built on from the factory.so if i understand right u used the truck flex plate with the spacer on there and just ovaled the holes.or u used a flat flex plate with part #?? spacer and bolt to make it work.just want to be 100% sure. thanks for your time.

 

I dont know the part numbers, but all that is factory..4L80E Flexplate & Spacer from a 2500 Truck.

 

that for you time.i do have the same flex plate.i will oval the holes and use it thanks so much.

 

im confused. when you buy the flexplate, does it come with the spacer (2 pieces) or are you talking about the spacer intergrated into the flywheel (1 piece) ?

 

If someone has one that is one piece with the Flexplate post a pic..I've never seen one.

 

The 6.0L flat flex plate has the spacer attached or "pressed" on the back side. It usually stays with the flex plate when you remove it. Its not one piece.

If you had a 5.3L curved flex plate never used the spacer in stock form.

So if you buy a used flat one it should have a spacer already, Now if you buy new I am not sure if the spacer comes with it as I have always just ran a used one.

Notethe one on the right with the shorter crank bolts is the curved 5.3L one. The flat flex plate is on the left note the longer bolts and spacer.
0222101754-00.jpg?t=1266884737


Stock 6.0L 4l80 flex plate and spacer. This is the crank side.
0222101755-01.jpg?t=1266884768

Dished flex plate with GM spacer after the crank.





Spacer from local dealer (cheaper online BTW)
GM PART # 12563532
CATEGORY: Engine Flywheel
PACK QTY: 1
CORE CHARGE: $0.00
GM LIST: $52.86


BOLTS
GM PART # 12563533
CATEGORY: All
PACK QTY: 1
CORE CHARGE: $0.00
GM LIST: $6.86

 

i just bought a spacer for another project today from the dealer. retail is 53.39. my cost was 40.04. whoever paid 85 bucks for a gm spacer got ripped.

as for the spacer comming off with the flywheel, never seen that happen.
spacer is always stuck to the crank. ive taken off several. probably at least 5.

 

Pace has the spacer for 20 bucks plus shipping. just my 2 cents, why pay 50 bucks for a spacer when you can get it way cheaper somewhere else

 

Merv, what kind of headers are you using? And I want to make sure I have read this thread correctly, the spacer should be in between the plexplate and the converter, and the lq4 that I will be getting soon should have the spacer and flexplate already bolted?