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Product Summary

  • Stock Ford small blocks don't have four-bolt main caps, so we recommend using our steel main girdle to increase the strength of the bottom end
  • Includes 5140 steel studs, nuts and spacers
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Key Specs

MFG. Part #575935100
BrandSpeedway Motors
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Need To Know

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Speedway Motors 575935100 Details

Stock Ford small blocks don't have four bolt main caps so we recommend using our steel main girdle to increase the strength of the bottom end. Includes 5140 steel studs, nuts and spacers.

Speedway Motors 575935100 Specifications

KEY SPECS
MFG. Part #575935100
BrandSpeedway Motors
GENERAL
NotesStuds are 5-1/16" long (1) OF NUTS, IS 12 POINT 1/2-20 FLANGED. INTENTIONAL.
Sold in QuantityKit

Ratings & Reviews

4

4 Reviews

Overall Assessment

Our product is highlighted for its precision and compatibility, with reviewers appreciating that the 351W girdle has well-coordinated holes that line up with the main cap holes perfectly. On the other hand, some reviews mentioned that the girdle plate might need modification at main locations and around the oil pump, and the washer spacers provided aren't thick enough for an ideal fit. Issues of hardware fitment have been noted. A note has been made about potential compatibility issues with a stock oil pan, signaling a requirement for adjustments. Overall, customers recommend our product for its specific qualities over competitors, while highlighting room for improvements.

4

4 reviews

5

2

4

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I would recommend this part

5.0

3 years ago

Joe

Pa

Verified

351w girdle holes lined up perfect with main cap holes

Would Recommend

would buy again

5.0

4 years ago

gm

lafayette tn

Verified

351 w

Would Recommend

I do not recommend

2.0

4 years ago

351Fox

El Paso, TX

Verified

Girdle plate needs to be grind at every main location and around oil pump. The 1/8" thick washer spacers are not thick enough to seat the girdle properly and the hole is to small for the bolts to go through. Getting new washers is a bit hard find and you need to spend a minimum of 40 dlls for a set of 10 washers. Overall, this is not a well designed girdle plate and no thought is given to the hardware fitment.

Would Not Recommend

its ok

4.0

7 years ago

mark

north carolina

Verified

stock oil pan will not work......had to grind on oil pump part....86 351..

Would Recommend

Showing 4 of 4 reviews