Product Summary

Universal Fit, Steel, Zinc Plated

  • Used in rear of Ford cylinder heads to plug Thermactor upstream air ports
  • Threaded insert provides correct thread size to mount engine accessories when installed in front of head
  • Zinc plated steel for corrosion protection
  • Easily threads into cylinder head with large flat-blade screwdriver
  • Set of four will do one pair of cylinder heads front and rear
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Key Specs

MFG. Part #5775804
BrandSpeedway Motors
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Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 5775804 Details

Set of great EGR steel plugs. These plugs are constructed from solid steel and feature a nice zinc finish. Use to plug emissions passage on rear of Ford cylinder heads and to reduce thread size on front of the cylinder head to allow accessory bracket installation. Sold as a set of 4.

  • Steel construction
  • Zinc finish
  • Set of 4
  • 5/8"-11 External (male) threads
  • 7/16"-14 Internal (female) threads

Application

Small block Ford factory and aftermarket cylinder heads

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Speedway Motors 5775804 Specifications

KEY SPECS
MFG. Part #5775804
BrandSpeedway Motors
GENERAL
Material TypeSteel
FinishZinc Plated
Sold in QuantitySet
NotesThermactor Air Insert Plug

Ratings & Reviews

5

8 Reviews

Overall Assessment

Customers appreciate the quality and practicality of this product. They commend its easy installation and confirm that it 'fits well'. The product is also described as high quality, attesting to superior material standards. A standout feature is its optimal size that ensures secure placement, although notes mention the precision required for fastening. The product provides a solution for installing new cylinder heads with EGR ports, emphasizing its utility. However, it may require a specific tool size for full tightness. Overall, customers highly recommend it.

5

8 reviews

5

8

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These were perfect!

5.0

a year ago

Sal

Peoria Az

Verified

When all the parts stores had to order them Speedway actually caries them in stock and cheaper than most!

Would Recommend

Just what I needed

5.0

a year ago

Windsordan

The Dalles, Oregon

Verified

Plugs fit perfect and do the job with a bit of copper anti-seize.

Would Recommend

Problem solved.

5.0

4 years ago

Ron

North Platte Ne

Verified

Will certainly use nickel anti-siege.

Would Recommend

What a great sales team, and a great product!

5.0

6 years ago

Dragon

Yelm, WA

Verified

Easy to install and high quality!

Would Recommend

yes

5.0

8 years ago

john

whiteville n.c

Verified

fit well

Would Recommend

Worked great

5.0

8 years ago

Jason

Kentucky

Verified

As advertised

Would Recommend

works as listed

5.0

8 years ago

bajafool

san diego, ca.

Verified

only con is getting the correct size screwdriver to tighten fully once it is in to the head

Would Recommend

I would recommend to a friend

5.0

9 years ago

S.Cobra

Mo.

Verified

Must have if installing new cylinder heads with EGR ports. Fit great ,little red loctite to make sure they don't move. And don't have to worry about trying to get the old ones out.

Showing 8 of 8 reviews

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