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LS Adapter Flexplate With Bolts Kit Fit For GM LS1/LS2/LS6/5.3L/6.0L adapt to TH350/700R4 Transmisson Swap Flywheel SFI

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Flex plate adapter kit Compatible with 1997-2007 LS1 LS2 LS6 engines for GM TH350, 700R4, 200-4R, 4L60 and Powerglide transmissions
Trans adapter kit Not compatible with 1999-2000 LQ4 6.0 LS engine, LSA/LS9 (8 bolt cassette) engine and 4L80E transmission. Because they have extended length crankshaft flanges, this product is not suitable for them. Forged 1-piece steel ring gears 168 tooth
Package includes:(1) Trans Adapter Flexplate 575-34610 , (6) Gen III LS Flexplate Bolts 101-2442901, (1) LS Crank Sleeve Adapter 575-18346, (1) Torque Converter Bolt Kit
【Installation NOTES 】:May not work with some 1999-2000 LQ4 6.0 LS engines, specifically ones that came with a 4L80E automatic as they require a flat flexplate due to the "tall" crank flange.
Works with 10.75" & 11.066" (11.1") bolt-pattern torque converters. Work with the factory LS starter, this adapter flexplate helps reduce conversion costs by utilizing existing components.

Product Description

LS Adapter Flexplate With Bolts Kit Fit For GM LS1/LS2/LS6/5.3L/6.0L adapt to TH350/700R4 Transmisson Swap Flywheel SFI

FITMENT

Works on all standard 6-bolt crankshaft 1997-2007 Gen III LS engines
Works with factory LS starter to reduce conversion costs
Allows direct bolt-on fitment of previous generation automatic transmissions
Supports Non-LS 4L60 as well as popular older 3- and 4-speed automatics
No modifications required to LS engine block or crankshaft
For 1997-07 GM LS1/LS6 engines (up to '09 for LS2) and 4.8/5.3/6.0 truck engines including L33, L59, LM4, LM7, LQ4, LQ9, and LR4.
Adapts all of these engines to TH350, 700R-4, 200-4R, 4L60 and Powerglide transmissions that originally came behind a non-LS engine (such as a SBC or BBC V8).
Common torque converter bolt patterns: 10.75" fits Powerglide, TH350, 2004R, 700R4, 4L60, (SBC & Non LS with 4L60E), 11.06 (LS & 4L60E with LS engine)
Not compatible with 8-bolt crankshaft Gen IV LS engines
Not for use with early Gen III LS 6.0L (1999-2000) due to extended crankshaft flange

Trans Adapter Flexplate 575-34610

GM LS Gen II to early GM 3/4 speed automatic

Works with 10.75" & 11.066" (11.1") bolt-pattern torque converters

SFI 29.1 certified

Forged 1-piece steel ring gears

Works with stock LS starter motor

Gen III LS Flexplate Bolts 2442901

Fits Chevrolet Gen III/LS Series V8

Exclusive, flat, 12-point head design

Has a 200,000 psi rating

M11 x 1.5

LS Crank Sleeve Adapter 575-18346

Overall Height: 1.04"

Inside Diameter: 1.47"

Diameter Small End: 1.70"

Diameter Big End: 2.00"

Material Type: Steel

Torque Converter Bolt Kit 230-7303

Socket Size(s): 5/8 12pt, 5/8 hex

UHL: 1.250˝

Thread Size: 7/16-20

Trans Adapter Flexplate

Gen III LS Flexplate Bolts

LS Crank Sleeve Adapter

Torque Converter Bolt Kit

No Installation Hassles Since Everything in The Kit Is a Direct Bolt-On Part

In this day and age of “bolt-on” parts the term often leaves a lot to be desired. However, as long as you’re fitting a small block or big block Chevy “classic” transmission to a 6-bolt Gen III LS V8 (which includes 1997-2007 LS1, LS3, LS6, and LS7; 2005-2009 LS2; and Vortec truck engines including the 4.8/5.3/6.0 under RPO codes L33, L59, LM4, LM7, LQ4, LQ9, and LR4) this is truly a bolt-on LS to TH350 adapter conversion solution. Besides the popular TH350 3-speed automatic and classic Powerglide 2-speed, this conversion kit will also work with GM’s non-LS 4-speed overdrive transmissions like the 200-4R, 700-R4, and 4L60.

Note that this is not a direct LS to TH400 adapter kit. While the popular Turbo 400 isn’t supported natively due to its larger 11.50” converter bolt pattern, if you wish to use a TH400 behind your LS you can simply swap your TH400 converter for a and everything will bolt right up then. The modern 4L80E uses the same 11.50” bolt pattern, but is not compatible with this kit, nor will this kit fit extended length crankshafts, such as early 6.0L applications, or 8-bolt crank Gen IV LS engines such as the LSA. If you’re looking to save money and reuse a classic GM small block or big block automatic transmission behind your Gen III LS swap, this easy to use flexplate adapter kit is what you need.

Interchange Part Number: 4l60e trans conversion LS3 LSX LS2

Crankshaft Powerglide

This flexplate is not compatible with TH400, and 4l80E transmissions

Will require torque converter spacer part number 551165 for NON LS transmissions

Yahawashi

2025-08-10 14:40:34

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chris

2025-04-28 16:06:00

Holes have to be elongated to fit 350 turbo

Aliviana York 2.0

2024-12-19 15:03:51

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LS Adapter Flexplate With Bolts Kit Fit For GM LS1/LS2/LS6/5.3L/6.0L adapt to TH350/700R4 Transmisson Swap Flywheel SFI

Product Description

LS Adapter Flexplate With Bolts Kit Fit For GM LS1/LS2/LS6/5.3L/6.0L adapt to TH350/700R4 Transmisson Swap Flywheel SFI

FITMENT

Trans Adapter Flexplate 575-34610

Gen III LS Flexplate Bolts 2442901

LS Crank Sleeve Adapter 575-18346

Torque Converter Bolt Kit 230-7303