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Product Summary

3.86" Bore Size

  • Full gasket set #910-12078 is a 2.3 Ford application '75-'86 with two-piece rear main seal
  • Kit includes two rear main seals to cover multiple applications
  • one 2-piece rear main seal (1974-1981)
  • one 1-piece rear main seal (1981-1993)
  • Includes "composition" head gasket
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Key Specs

MFG. Part #91012078
BrandSpeedway Motors
Bore Size3.86"
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Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 91012078 Details

Racing gasket set for 2.3 Ford. Kit includes two rear main seals to cover multiple applications: one 2-piece rear main seal (1974-1981) and one 1-piece rear main seal (1981-1993). Includes "composition" head gasket.

Item Details

'''74-''81 2-piece main
''82-''93 1-piece main'

Speedway Motors 91012078 Specifications

KEY SPECS
MFG. Part #91012078
BrandSpeedway Motors
Bore Size3.86"
GENERAL
Sold in QuantitySet
NotesBore size dimension is a close approximation. Will fit both 1974-1981 and 1981-1993 rear mains (both included). Head gasket thickness is .047" and .055" at the metal rings.

Ratings & Reviews

4.4

20 Reviews

Overall Assessment

Customers appreciated the high quality and comprehensiveness of our gasket set, with many noting that it was an excellent value for the money. Several reviewers praised the product's durability and effectiveness in preventing oil leakage, with one even stating that their engine did not leak a single drop all season after using this set. The gasket set was often described as easy to use and a crucial component in successful engine reconstruction. However, there were some concerns about the accuracy of the set's labeling, with one customer experiencing compatibility issues. Despite this, most customers were satisfied with the results and would purchase the product again.

4.4

20 reviews

5

14

4

4

3

0

2

0

1

2

Most Liked Positive Review

4.0

Best Gasket set I have used on my Race Engines

By far these are the best gaskets I have bought for my SCCA Competition engines, I have used and abused them and never had a leak, especially around those pesky Oil Pan Gaskets. About the only Gaskets I have not used is the Head Gasket as I use a sized Cometic Gasket, and the Valve Cover Gasket as I run the original Late Ford One-Piece Rubber Gasket. The best part is the Oil Pan Gasket being that they use Ford # Stamped End seals and a good quality paper gasket as opposed to the original cork. I have actually bought several of these sets just to get the Oil Pan gasket at the end of the year for when I do my inspections and honestly if I could buy just that gasket set I would, but sadly the one sold here on Speedway for just the Pan is not of the same quality as the Pan Gaskets in this set. So I have alot of spares laying around that will likely take a decade or more to ever need. Overall this set combined with the Ranger Valve Cover gasket (F57Z-6584-A) and a good fitted Cometic MLS Head Gasket makes a winning combination.

Most Liked Negative Review

1.0

Description is Inaccurate

I ordered this set for a 1992 Ford Mustang with the 2.3L engine. It did not include the correct upper or lower intake gaskets, oil pan gasket, or valve cover gasket. Only the oil seals were correct. After talking with multiple customer support reps, I am stuck with this gasket set, Although the description clearly says it for 74-93 2.3 engines.

Filter by Ratings

I'd buy again

5.0

7 months ago

Plumcrazy

AL

Verified

Easy to install or put gaskets on

Would Recommend

Great product for a great price!

5.0

8 months ago

Lou

Washington

Verified

This kit has everything you need when rebuilding your motor!

Would Recommend

I would buy this again

5.0

11 months ago

Nate

Hilton va

Verified

Put a whole new gasket set on work put the best.

Would Recommend

Yes

5.0

a year ago

Thomas

Meridian Idaho

Verified

Rebuilding 83 Ford 2.3

Would Recommend

I will order from Speedway again

5.0

a year ago

Sand Mountain

Boaz AL

Verified

Great customer service and the parts were actuallly exactly what we needed.

Would Recommend

Best Gasket set I have used on my Race Engines

4.0

a year ago

Craig

Homedale, ID

Verified

By far these are the best gaskets I have bought for my SCCA Competition engines, I have used and abused them and never had a leak, especially around those pesky Oil Pan Gaskets. About the only Gaskets I have not used is the Head Gasket as I use a sized Cometic Gasket, and the Valve Cover Gasket as I run the original Late Ford One-Piece Rubber Gasket. The best part is the Oil Pan Gasket being that they use Ford # Stamped End seals and a good quality paper gasket as opposed to the original cork. I have actually bought several of these sets just to get the Oil Pan gasket at the end of the year for when I do my inspections and honestly if I could buy just that gasket set I would, but sadly the one sold here on Speedway for just the Pan is not of the same quality as the Pan Gaskets in this set. So I have alot of spares laying around that will likely take a decade or more to ever need. Overall this set combined with the Ranger Valve Cover gasket (F57Z-6584-A) and a good fitted Cometic MLS Head Gasket makes a winning combination.

Would Recommend

Description is Inaccurate

1.0

5 years ago

Charles

North Carolina

I ordered this set for a 1992 Ford Mustang with the 2.3L engine. It did not include the correct upper or lower intake gaskets, oil pan gasket, or valve cover gasket. Only the oil seals were correct. After talking with multiple customer support reps, I am stuck with this gasket set, Although the description clearly says it for 74-93 2.3 engines.

Would Not Recommend

full gasket sets

5.0

6 years ago

Dave

Colorado Springs

Verified

These gasket sets are of high quality and everythinf is included in the set plus speedway ships them very quickly

Would Recommend

Great to deal with. Quality items

5.0

7 years ago

Chubz

Zerbe,PA

Verified

Great quality product. Quick shipment

Would Recommend

I would definitely recommend this and buy again

5.0

8 years ago

Scooter

Fayetteville nc

Verified

Awesome product definitely completes a new engine build.

Would Recommend

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Showing 10 of 20 reviews

Fitment

  • Ford Lima 2.3

  • 2.3 Ford Inline Four

  • Ford Lima 2.3

  • Ford Lima 2.3

Customer Impersonation Script