Sale

Drivetrain Automatic Transmissions and Components

Summit Racing

Internal Balance Flexplate

$136.10 $112.18 Save $23.92

SKU: SUM-G105SFI

In Stock
In Stock
Ships by Aug 4
Free Shipping over $100
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Constructed from steel, it features a thicker design than OEM parts, with a robust double-welded, forged one-piece ring gear for superior strength and longevity. This flexplate is designed for internally balanced engines and carries an SFI 29.1 rating, ensuring it meets safety and performance standards required for competitive driving. It includes a 168-tooth ring gear and is compatible with 1-piece rear main seals. **Fitment:** This flexplate is specifically designed for Chevrolet V8 Chevy Small Block Gen III/IV (LS-based) engines, including 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, and 7.0L displacements from model years 1997 through 2019. **Important Notes:** This product is not intended for marine applications. Additionally, it will not fit 1999-2000 4.8L applications originally equipped with a manual transmission, nor will it fit 1999-2000 6.0L applications that feature a 0.400-inch extended crank flange and a flat flexplate.

MIA's Description

It features a thicker-than-stock steel construction with a double-welded, forged one-piece ring gear for durability. This flexplate is internally balanced and meets SFI 29.1 rating standards.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSummit Racing
Part NumberSUM-G105SFI
CategoryDrivetrain

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy