Gen III GM LS V8 to TH350/700R4 Trans Adapter w/Motor Mounts

Flexplate

Make your Gen III LS swap a breeze with this flexplate adapter for GM automatic transmission. These platinum series flexplates are engineered to handle extreme duty applications and designed to take the punishment of today's high horsepower Gen III engines. The 4mm thick centerplate provides a solid foundation (that's 0.035" thicker than stock). Ring gears are precision welded to meet SFI 29.1 specifications, utilizing robotic cold-welding processes. These flex plates are inspected throughout the manufacturing cycle to ensure a high quality, safe end product.

• SFI 29.1 certified
• Direct bolt on for Gen III LS engines w/ "short" crank flange
• Adapts to GM TH350/700R4/2004R/4L60/Powerglide transmissions
• Works with 10.75" & 11.066" (11.1") bolt-pattern torque converters
• Constructed from cold-rolled premium steel
• 0.035" thicker than stock flexplates
• Long lasting gold iridited finish prevents rust
• Forged 1-piece steel ring gear w/ 168 teeth
• Features double welded ring gears for added durability
• Works with factory LS starter motor

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).

Flywheel Bolts

Flywheel bolts play an important role in the performance and safety of race cars and street machines alike. That’s why the fastener experts at ARP develop special bolts that are far superior to OEM hardware. Forged from aerospace alloy and heat-treated prior to thread rolling and machining.

• Fits Chevrolet Gen III/LS Series Small Block
• Exclusive, flat, 12-point head design
• Larger than stock shank diameter for increased strength and improved flywheel register
• Originally developed for NASCAR Winston Cup competition
• Has a 200,000 psi rating
• Set of 6
• M11 x 1.5
• .880" under head length

Adapter Sleeve

This adapter sleeve will connect a GM LS engine crankshaft to an older GM 2/3/4 speed automatic transmission torque converter. It centers the torque converter hub into the LS cranksaft. Use with flexplate adapter 57534610.

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, TH400, 700R-4, 200-4R, early 4L60 and Powerglide transmissions that originally came behind a non-LS engine (such as a SBC or BBC V8).

Torque Converter Bolts

These ARP torque converter bolt kits are for use with GM transmissions like the Chevrolet Powerglide, TH350 & TH400 with a race converter.  They also work for 1/2? thick tabs.

• UHL: 1.250"
• Thread Size: 7/16-20
• Black oxide finish
• Made in the U.S.A.

Engine Swap Brackets