Builtz71

iTrader: (4)

I hate sounding like a newb,but not real sure if this is the short crank or not..
If it is,what will I need with this flexplate to mount a th400 to it?without buying a custom converter
Crank pic

With "supposedly" ls1 flexplate,just sitting on there..not bolted up

Any info will be appreciated!

Adam123

iTrader: (1)

Are the heads stock and if so are they iron? IIRC the iron headed lq4 had the long crank. Mine did. I'm not sure how true my statement is, but I seem to remember that.

Adam123

iTrader: (1)

I think you buy a spacer and not a converter.

LS1MCSS

iTrader: (18)

That is the short crank motor. I don't use the GM spacer. I use the one made by Hughes and the curved flexplate.

Builtz71

iTrader: (4)

the flexplate i have i believe is the curved one..i was also considering buying the tci flexplate,and running a tci or hughes converter from summit..what do you guys recommend?

S10xGN

iTrader: (11)

I used the GM 0.400" spacer and flat 'plate.

Centerfold_Firehawk

i also need infor on this subject as i just bought a iron headed 6.0 out of a 2000 2500 and want to put it in my 2002 silverado 1500 that has a 4.8. i got the flexplate with the 6.0 off the 4l80e do i need the same .400" spacer as well and if so what is the gm part number

Builtz71

iTrader: (4)

Talked to Chris from circle d today..he told me with the power my motor is making,and me planning on running a shot on it later..that I need a sfi certified flexplate..so I'm just gonna go with there flexplate and ls to th400 converter..

Bo185

That motor will not work with the 4l60e you have. The conveter will not bolt up. As the longer crank flange will prevent it form fitting. You could just run a 4.3L converter and the flat flex plate and that should work.