Fel-pro 8723 vs. 9441

BIGAIR

Boost addict
Joined
May 17, 2005
Bought 5 sets of head gasgets from a business close-out($10/set-score :))
There was 4 sets of 9441 and 1 set of 8723. I have used the 9441's, but have not seen the 8723's before. The 8723's look very nice, different material and seem a little thinner. Looks like they would hold up nice, so I am thinking of putting them on. Any one use these? Good? Bad?
Thanks
 
Bought 5 sets of head gasgets from a business close-out($10/set-score :))
There was 4 sets of 9441 and 1 set of 8723. I have used the 9441's, but have not seen the 8723's before. The 8723's look very nice, different material and seem a little thinner. Looks like they would hold up nice, so I am thinking of putting them on. Any one use these? Good? Bad?
Thanks

From the info i could find the 8723 head gaskets are not designed to be used in our turbo engines. Here is that info on head gaskets.

Brand Part Number Bore Size Compressed
Thickness Bolt Holes Composition Notes M.S.R.P
Cometic H1548040S 4.090" .040" 14 Multi-Layer Steel BUICK V-6 196,231,252ci, Sold Individually
$72.58
Cometic H1548043S 4.090" .043" 14 Multi-Layer Steel BUICK V-6 196,231,252ci, Sold Individually
$72.58
Cometic H1602040S 3.86" .045" 14 Multi-Layer Steel BUICK V-6 196,231ci, Sold Individually
$72.58
Cometic H1602045QS 3.86" .045" 14 Multi-Layer Steel BUICK V-6 196,231ci, Sold Individually
$72.58
Cometic H1602054S 3.86" .054" 14 Multi-Layer Steel BUICK V-6 196,231ci, Sold Individually
$72.58
Cometic H1602057S 3.86" .057" 14 Multi-Layer Steel BUICK V-6 196,231ci, Sold Individually
$72.58
Cometic H1602067S 3.86" .067" 14 Multi-Layer Steel BUICK V-6 196,231ci, Sold Individually
$125.95
Cometic H1603057S 4.020" .057" 14 Multi-Layer Steel BUICK V-6 196,231,252ci, Sold Individually
$72.58
Cometic H1603067S 4.020" .067" 14 Multi-Layer Steel BUICK V-6 196,231,252ci, Sold Individually
$125.95
Cometic H1603SP1040S 4.060" .040" 14 Multi-Layer Steel BUICK V-6 196,231,252ci, Sold Individually
$72.58
Cometic H1603SP1045QS 4.060" .045" 14 Multi-Layer Steel BUICK V-6 196,231,252ci, Sold Individually
$72.58
Felpro 1000 4.020" .039" 14 Steel Core Laminate Pre-flattened STEEL wire, For use with Iron Heads
$39.95
Felpro 1007 4.100" .039" 14 Steel Core Laminate Loc Wire Copper Wire w/ Steel Core Laminated. Requires receiver grooves in cylinder head
$61.99
Felpro 1026 4.090" .032" 14 Steel Core Laminate Pre-flattened COPPER wire, For use with Aluminum Heads
$39.95
Felpro 8723PT1 4.020" ?" 8 Grey/Orange This head gasket is included in a typical Summit Engine rebuid kit. DO NOT USE THIS GASKET IN A TURBO ENGINE, EVER! WRONG DESIGN!
$?
Felpro 9441PT 3.860" .063" 8 Felpro Blue Felpro Stock Replacement 'Turbo' Gasket
$38.95
GM 25524599 TBD" TBD" 8 Steel Shim Steel Shim Head Gaskets Available from GM
$15.43
GM 25528486 TBD" TBD" 8 Composite/Graphite Stock Replacement Head Gasket From GM
$55.53
Mr. Gasket 5783 4.060" .038" 14 Flexible Graphite Core, Elastomer Coated Non-Retorquing, Sold as a pair
$59.39
Mr. Gasket 5811 4.060" .038" 8 Flexible Graphite Core, Elastomer Coated Non-Retorquing, Sold as a pair
$59.39
 
Dr Boost yelled at me for using those on a motor I was toying around with. 29-32 psi from a 6765 and many runs with over 25 psi. Held up and for a while and it was the second use for them. Studs and torqued to 85ft lbs. They do not have the bridge on the edge of the side of the gasket like the 9441's do. I wouldn't try it again but hey... it worked a while. The only reason I had to change them was because I had crack in the vacuum line that feeds my map sensor and boosted it too much.
 
Wow! Good info,

Thanks Whitehot1,
Thats the one....8723 grey w/ orange. Guess I will stick w/ the 9441.

Jasjamz- glad you did not harm anything! 32psi :eek: wish I had the nerve!

Thanks again guys
 
Top