TH350 conversion-Difference between LS1 and 6.0L Flexplates?
TH350 conversion-Difference between LS1 and 6.0L Flexplates? Just been reading about 50 old posts on TH350/400 swaps with LS1's.
Most say to order the 6.0L Flexplate and spacer (01+ model)
Besides the 6.0L flexplate having old SBC Converter bolt pattern is it the same size/dimension/dish as a normal LS1 flexplate?
Eg. with my 01 LS1 flexplate can I just drill holes for converter to bolt to and use the 6.0L spacer? Will this space the converter in the same spot as the 6.0L flexplate and spacer?
Most say to order the 6.0L Flexplate and spacer (01+ model)
Besides the 6.0L flexplate having old SBC Converter bolt pattern is it the same size/dimension/dish as a normal LS1 flexplate?
Eg. with my 01 LS1 flexplate can I just drill holes for converter to bolt to and use the 6.0L spacer? Will this space the converter in the same spot as the 6.0L flexplate and spacer?
Well if you use a converter that is built for a LS1 you wont need the spacer then al you have to look in to is if the bolt holes are going to line up. If you get a 98 flexplate or a one of the TCI ones you wont have a problem.
Launching!
Joined: Nov 2003
Posts: 235
Likes: 0
From: White Salmon, WA.
I had a custom TC built for my set up. They asked me what flexplate I was running and built the TC so it would bolt right to the flex plate. If you call and tell 'em what you need they, (whoever you buy the TC from) might custom build it for you!
Ken
Ken
I just checked, my flexplate is off a 99 model engine but has dual bolt pattern, I bolted an old TH350 converter up to test it. Bolts up perfect without elongating the holes.
Do I need a spacer with the 98-9 flexplate or is the spacer only needed for a 6.0L flexplate?
Do I need a spacer with the 98-9 flexplate or is the spacer only needed for a 6.0L flexplate?
the spacer really has nothing to do with the flexplate. it's needed because the crank is too short to support the front of the converter. i'm using a regular 5.7 flexplate and the spacer. i redrilled a second set of holes. it's way , way cheaper. now if you need another converter anyway then it's another story.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
not sure the year of the flexplate but yep, that's what i'm using. actually i'm using a BOP turbo 350 so i have an adapter plate(1/8") between the engine and trans. so i'm using a 1/8" washer between the flexplate and the converter.
do you mean the adapter plate i'm using to bolt a Buick Olds Pontiac th-350 to a chevy engine or the crank spacer? the adapter is a TCI-60172. about $50 from any speed shop. the crank spacer came from gm part #12563532, $25. it also requires 6 bolts part#12563533 $22.
