holley505

iTrader: (1)

Hey guys.... need some more help.

I am getting the Spacer for the Th350/Th400 to bolt to the 5.3 but can I use the 5.3 Flywheel? Or do I need to get a different flywheel?

I think I heard that the 5.3 truck flywheel can be modded to fit or will fit?

Let me know.

THANKS !!!

JoeyGC5

iTrader: (24)

Use the spacer and then the converter holes may have to be slightly elongated to match up to your converter.

holley505

iTrader: (1)

I have these part numbers... but I thought you can get away with using a 5.3L flexplate? Has anybody done this?

www.summitracing.com

LS1 - Crank Adapter $34.95 Part#: HP3795
LS1 - Flexplate $129.95 Part#: HP4004

holley505

iTrader: (1)

http://jeepinpete.com/engine_trans_a...ans_adapt1.htm

FOUND IT !!!

Yes... just need spacer and longer BOLTS !! thx JoeyGC5

NemeSS

iTrader: (127)

few options:
jw sells a adapter spacer that allows u to use a sbc flexplate

hughes sells a sfi flexplate with ls1 crank pattern and sbc diameter and
th350/400 bolt pattern tq converter
a 6.0 flexplate with spacer will work best and may be the cheepest if u dont plan on racing and turning over 7000rpm
i wouldnt use anything but sfi anymore, i seen what damage a flexplate that comes apart can cause

Rafko

iTrader: (1)

got the adapter in the console of my truck never used....pm if you need it...you have to order the bolts though....

lynmup

iTrader: (6)

Advance Adapters sells one to fit the new Gen III/IV to the TH350, TH400. 700R4/4L60 90 degree transmissions.

http://advanceadapters.com/index.php...h_text=712500a

Taubr Unit

iTrader: (32)

subscribing

camaroIroc

iTrader: (1)

i have a 5.3 mated to a 700r4. all i used was the spacer. spacer will go on outside of flywheel, and if you are using GM small TC, then the bolts holes will already line up, no elongation needed. just make sure to space the converter from the flywheel right, the flexplate needs to still have some give for it to flex. good luck with the build!

NemeSS

iTrader: (127)

tc,what size is small?