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In-Store Pickup Location

Summit Racing® SFI-Approved Flexplates SUM-G104SFI

Summit Racing SUM-G104SFI - Summit Racing® SFI-Approved Flexplates
  • The Summit Racing Street and Strip Flexplate

    The Summit Racing Street and Strip Flexplate

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Flexplate, 168-Tooth, External Engine Balance, 1-Piece Rear Main Seal, SFI 29.1, Chevy, V6/V8, Each

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Brand: Summit Racing

Manufacturer's Part Number: SUM-G104SFI

Part Type: Flexplates

Product Line: Summit Racing® SFI-Approved Flexplates

Summit Racing Part Number: SUM-G104SFI

UPC: 190861056183

Ring Gear Tooth Quantity: 168-tooth

Rear Main Seal Style: 1-piece

Engine Balance: External

Flexplate Material: Steel

Safety Rating: SFI 29.1

Quantity: Sold individually.

In-Store Pickup: Choose In-store pick-up (OH, NV, GA, TX) on our web site.

Our Summit® 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.


Questions & Answers Ask a Product Question

Will this work on a gen1 1 piece rear main seal, 350/700r4?

Asked by TYLER on August 21, 2018


Yes works on my 383 1 piece 350 thm

JEFF from OH answered on August 21, 2018

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bought this Flexplate to use on my BluePrint 383 crate motor.I need a torque converter between 2000 and 2400. Can you recommend one?

Asked by BRUCE on February 06, 2018


Thank you for your question. You didn't mention the transmission you're using so we'll assume a GM TH-350. If that's the case, Hughes makes a great converter in a 2,000 RPM stall as part number HUP-GM20. If you're using something other than a TH-350, please copy and paste this link then select your transmission from the left-hand web filter:

Summit RacingSummit Racing Answer - February 06, 2018

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What is the bolt circle pattern on this flex plate?

Asked by DAVID on December 24, 2017


The bolt pattern is erratic (can only be put on one way) the bolt pattern diameter is approximately 2.990. I hope that answers your question.

DANIEL from CA answered on December 29, 2017

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Will this work with a b&m 10” 2000-2400 converter. It says you need a small bolt pattern?

Asked by ERIC on December 18, 2018


Thank you for your question. The Summit G104SFI flexplate is drilled for both the small 10 3/4 in. and the large 11 1/2 in. bolt pattern.

Summit RacingSummit Racing Answer - December 18, 2018

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Some parts are not legal for use in California or other states with similar laws / regulations

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