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Flexplate, Superplate, 139-tooth, Steel, Internal Engine Balance, 2-piece Rear Main Seal, SFI 29.2, Chevy, GMC, Each
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
ATI915556
Part Type:
Product Line:
Summit Racing Part Number:
ATI-915556
UPC:
800157073250
Ring Gear Tooth Quantity:
139-tooth
Rear Main Seal Style:
2-piece
Engine Balance:
Internal
Flexplate Material:
Steel
SFI Rating:
SFI 29.2
Marine Use:
No
Quantity:
Sold individually.
Notes:
Must be used with 10 pitch components and a special starter. Has 1/2 in. size bolt holes.
ATI Superplate Flexplates
ATI Superplate Flexplates were developed in ATI's tradition of staying ahead of the rampant increases in horsepower that are common in the performance industry today. Superplates are manufactured from a super-strong material to withstand thousands of cycles. They are laser-machined rather than stamped to avoid the heat and stress stamping inflicts.
The crank bolt holes are bored in position to exacting tolerances in both size and location on CNC machines. Superplates use the grip length of the crank bolts as dowels to prevent the plate from moving under high-torque conditions. Unlike billet plates that violate the "flex principle" of a flexplate, Superplates flex like OEM plates, absorbing the numerous machining tolerances that exist in our non-exact world.
Additional features of ATI Superplate Flexplates include:
* Neutral-balanced for use on internally balanced engines
* Exceed SFI 29.1 and 29.2 ratings
* 90,000 lbs. tensile strength
* 80,000 lbs. yield strength
* Six or eight crank bolts (varies by application)
Applications
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Some parts are not legal for use in California or other states with similar laws / regulations
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