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Summit Racing™ SFI-Approved Flexplates

4.26 out of 5 stars 496 Customer Reviews

Our Summit Racing™ SFI-approved flexplates are built for racing. They're thicker than stock, double-welded with a forged one-piece ring gear. Available in several internally and externally balanced applications. NOT FOR MARINE APPLICATIONS.

Results 1 - 25 of 30

Flexplate, 168-Tooth, Internal Engine Balance, 2-Piece Rear Main Seal, SFI 29.1, Chevrolet, V8, Each

Part Number: SUM-G100SFI

4.27 out of 5 stars ( 135 )

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Flexplate, 168-Tooth, Internal Engine Balance, SFI 29.1, Chevy, GM LS Gen III/IV, Each

Part Number: SUM-G105SFI

3.75 out of 5 stars ( 24 )

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Flexplate, 168-Tooth, External Engine Balance, 2-Piece Rear Main Seal, SFI 29.1, Chevy, 454, Each

Part Number: SUM-G102SFI

4.53 out of 5 stars ( 57 )

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Flexplate, 157-Tooth, External Engine Balance, 50 oz. Imbalance, SFI 29.1, Ford, Small Block, Each

Part Number: SUM-G110SFI

4.2 out of 5 stars ( 40 )

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Flexplate, 164-Tooth, External Engine Balance, 28 oz. Imbalance, SFI 29.1, Ford, Small Block, Each

Part Number: SUM-G111SFI

3.78 out of 5 stars ( 40 )

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Flexplate, 168-Tooth, External Engine Balance, 2-Piece Rear Main Seal, SFI 29.1, Chevy, 400, Each

Part Number: SUM-G101SFI

4.24 out of 5 stars ( 45 )

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Flexplate, 153-Tooth, Internal Engine Balance, 2-Piece Rear Main Seal, SFI 29.1, Chevy, V8, Each

Part Number: SUM-G103SFI

4.55 out of 5 stars ( 31 )

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Flexplate, 157-Tooth, External Engine Balance, 28 oz. Imbalance, SFI 29.1, Ford, Small Block, Each

Part Number: SUM-G115SFI

5.0 out of 5 stars ( 12 )

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Flexplate, 155-Tooth, Steel, External Balance, SFI 29.1, Ford, Powerstroke, Each

Part Number: SUM-G132SFI

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Aug 19, 2025 if ordered today

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Estimated Ship Date: Aug 19, 2025 if ordered today

Flexplate, 168-Tooth, External Engine Balance, Chevy Gen V and VI 454, SFI 29.1, Each

Part Number: SUM-G112SFI

4.0 out of 5 stars ( 14 )

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Flexplate, 168-Tooth, Billet Steel, Internal Balance, GM LS Series, 6 Bolt Crank, SFI 29.2, Each

Part Number: SUM-G127SFI

Not Yet Reviewed

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Flexplate, 152-Tooth, Steel, Internal Balance, SFI 29.3, Dodge, 6.7L Cummins, Each

Part Number: SUM-G142SFI

2.5 out of 5 stars ( 4 )

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Flexplate, 166-Tooth, Internal Engine Balance, 2.750 in. I.D. Crankshaft register, SFI 29.1, Pontiac V8, Each

Part Number: SUM-G107SFI

4.88 out of 5 stars ( 16 )

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Flexplate, 152-tooth, Internal Balance, SFI 29.1, Dodge, Cummins, 6.7L, Each

Part Number: SUM-G136SFI

2.0 out of 5 stars ( 4 )

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Flexplate, 168-Tooth, Billet Steel, Internal Balance, Chevy SB/BB with 2-Piece Rear Main Seal, 6 Bolt Crank, SFI 29.2, Each

Part Number: SUM-G128SFI

Not Yet Reviewed

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Flexplate, 164-Tooth, 50 oz. External Balance, Ford 302, SFI 29.1, Each

Part Number: SUM-G113SFI

Not Yet Reviewed

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Flexplate, 168-Tooth, Internal Balance, GM LS, HD Quick-Launch Design with 4mm thick centerplate, SFI 29.1, Each

Part Number: SUM-G119SFI

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Aug 22, 2025 if ordered today

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Estimated Ship Date: Aug 22, 2025 if ordered today

Flexplate, Internal Balance, Mopar SB and BB, TF-727 10 in. or 11.125 in. Converter, 6 Bolt Crank, SFI 29.1, Each

Part Number: SUM-G123SFI

Not Yet Reviewed

Estimated Ship Date: Aug 22, 2025 if ordered today

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Estimated Ship Date: Aug 22, 2025 if ordered today

Flexplate, External Balance, Mopar SB 360 1971-92, TF-727 10 in. or 11.125 in. Converter, 6 Bolt Crank, SFI 29.1, Each

Part Number: SUM-G124SFI

Not Yet Reviewed

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Flexplate, 153-Tooth, External Balance, Chevy Gen I small block V-8 and GM V-6, SFI 29.1, Each

Part Number: SUM-G117SFI

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Flexplate, External Balance, Mopar BB 383 400 440 1971-79, TF-727 10 in. or 11.125 in. Converter, 6 Bolt Crank, SFI 29.1, Each

Part Number: SUM-G126SFI

Not Yet Reviewed

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Flexplate, 164-Tooth, Internal Engine Balance, SFI 29.1, Ford, Modular, Each

Part Number: SUM-G114SFI

5.0 out of 5 stars ( 3 )

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Flexplate, 141-Tooth, Steel, External Balance, SFI 29.1, Ford, 6.0L Powerstroke, 5R110, Each

Part Number: SUM-G130SFI

5.0 out of 5 stars ( 2 )

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Flexplate, 152-Tooth, Steel, Internal Balance, SFI 29.1, Dodge, Cummins, 5.9L, 8-Bolt, Each

Part Number: SUM-G134SFI

5.0 out of 5 stars ( 3 )

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