problems with 4l80e swap..:(

[txarkitekt]

Yes the way Yank makes the verter...3 of the bolt holes line up perfectly...you can use the 98 f-body flexplate and it has the proper dish so you dont need the LQ4 spacer...if you use the flat 5.3 flexplate then you'll need a spacer

Listen to this guy...

you used a stock 5.3 flexplate withouth a spacer????, that doesnt sound right.

That's what I was thinking...

pull the trans and see how far the verter is seated into the front pump...that spacer is about a 1/2'' thick

He said it was a 1/4" or so...sounds fine to me...maybe this Yank verter has long enough ears for this to work without needing an LS1 flexplate or spacer...????????????????????????????????????????? ????????????????

the converter was seated in the pump and bolted up to the 5.3
flexplate fine

Yes, this could be true--but it may have pulled the converter hub too far out from the front pump. I honestly would not drive it until you get a hold of Yank and find out.

[wstewart58]

just got off the phone...dave said no spacer needed and use the 5.3 flexplate just make sure and check the spacing between the converter an flexplate is at least 3/32 but no more than 3/16 b4 bolting it up

[wstewart58]

if its not ingaging the pump completely exactly how would it be acting

[WARLOCK]

kaboom comes to mind.

[wstewart58]

i know that lol...i only drove it proly 4 or 5 miles in all den parked it cause i was wryd...im just trying to figure out if i just have to much stall?? or is the pump not ingaged??? or wat it could be..id think in 5 miles of driving wouldnt it have already went kaboom if the pump wasn't engaged

[zeake]

stop worrying these guys should know its fine. 80e swap does eat some power. your convertor is fine. no spacer needed. 80e has a different 1st gear ratio. plus your stall is large if you have a stock cam.
measure and put some miles and cam and spray.

[WARLOCK]

Just remove the lower cover and measure like dave said.

[WARLOCK]

I agree your converter is big for a stock cam. Get yourself a big cam to go with the verter

[nonecktribe]

sounds to me like you already did your calling to verify that this combo would work...
the reason you feel slower is due to the 5.3 with a stock cam behind a 3600 stall and you need to remember that an 80e has a long first gear...

throw a big cam in that sucker and some spray and you will know you did the right thing

[wstewart58]

guess il make sure the spacing is rite an break the converter in an hope it works lol...thanks guys