|
Re: Hardened Seats. Necessary?
[Re: MadMopars]
#1573680
02/03/14 08:12 PM
02/03/14 08:12 PM
|
Joined: Aug 2007
Posts: 2,224 Arlington, Tx.
BJS racing
top fuel
|
top fuel
Joined: Aug 2007
Posts: 2,224
Arlington, Tx.
|
Just use chocolate pudding! It will all be good! Unleaded fuel you will want to run hardened seats.
Back in the swing of things at Painless again! Great to be back!
|
|
|
Re: Hardened Seats. Necessary?
[Re: MadMopars]
#1573681
02/03/14 08:22 PM
02/03/14 08:22 PM
|
Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
|
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
|
Quote:
Unleaded. No additives.
Lead was a additive that use to lube and it saved the seats.. if you put a lot of miles on it then the seats would help a lot
|
|
|
Re: Hardened Seats. Necessary?
[Re: dwayne welder]
#1573685
02/04/14 01:06 AM
02/04/14 01:06 AM
|
Joined: Aug 2010
Posts: 343 S.E.Mich
drew72
enthusiast
|
enthusiast
Joined: Aug 2010
Posts: 343
S.E.Mich
|
Quote:
HELLO Any cylinder heads casted before 1972, will need hardend seats installed for unleaded fuel!!! After that date they were induction hardend from the factory!! Also if you install larger exhaust valve's, you my need to install hardend seats. Because that take's away the area that was induction hardend!! When you have them install and valve job done, your valve job will last a long time, and mile's!!! Good Luck!!
Of course induction hardening is very superficial. Good for 1 maybe 2 valve jobs. The hardened surface was only about .015" deep. After that it's time for new seats.
|
|
|
Re: Hardened Seats. Necessary?
[Re: drew72]
#1573686
02/04/14 01:56 AM
02/04/14 01:56 AM
|
Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
Too Many Posts
|
Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
|
I did not put hardened valve seats in my old mild 440 street/strip eng. Has been together on the road since 2006 and still working fine. But I only put about 5000 miles a year on it. They are 906 heads I did myself as I put the larger 2.14 and 1.81 valves in them. It may have about 25 to 30,000 miles on it and the valve adjustment is still on the money. It is now in my buddies Duster still going strong and its only run on pump gas unleaded. Ron
Last edited by 383man; 02/04/14 01:59 AM.
|
|
|
|
|
|