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 Heads, valves and a few other questions about 91-94 heads
#559741
01/28/05 06:55 PM
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Joined: May 2000
Posts: 778
OP
Rock Warrior
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I have to replace the head on my 91 amigo, 2.6L. Are there any differences in a head from 94? valve size, air pump crap, ect. Im going to use the old valves (frim the 91, casting 3 head)since they are only about 30k old. thanks james <img src="/forums/images/graemlins/cheers.gif" alt="" />
[url=mailto:corsicas@aol.com]corsicas@aol.com[/url] ,1991 amigo, 3 Bodylift,2.5 supension , 33x12.5 ProComp MT's, Ranch 9000s & steering stab.,Calmini header, 2 1/4 pipes, flowmaster Muffler, K&N drop-in Filter, extended breather hoses,Delta cam, 2core Radiator
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Re: Heads, valves and a few other questions about 91-94 heads
[Re: JamesW]
#559742
01/28/05 08:18 PM
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Joined: Sep 2000
Posts: 4,277
Roll Me Over
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93+ is a newer casting than 91 (casting numbers go up to about 5 or 6, then start over). 95 is the same as 93,94 but without the ports for the air rail. You'd definitely rather have a 94 head over a 91.
-Rob
EDIT: good to see you still around James, its been a while since i saw your name in a post. welcome back my friend.
Last edited by RobG; 01/28/05 08:19 PM.
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Re: Heads, valves and a few other questions about 91-94 heads
[Re: JamesW]
#559743
01/28/05 08:41 PM
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Joined: Apr 2000
Posts: 7,268
Isuzu Moderator
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Hi James. It's been a while.
There is also a major difference between 91 and 93-on. The combustion chambers got smaller. It will work, you will get a jump in compression and you most likely will like it.
Good Luck,
Michael
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Re: Heads, valves and a few other questions about 91-94 heads
[Re: mlclark]
#559744
01/28/05 09:44 PM
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Joined: May 2000
Posts: 778
OP
Rock Warrior
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So the 1995 head would work also, just with out the air rail? And the valves are the sames size?
Its great to talk with you folks again.
james
[url=mailto:corsicas@aol.com]corsicas@aol.com[/url] ,1991 amigo, 3 Bodylift,2.5 supension , 33x12.5 ProComp MT's, Ranch 9000s & steering stab.,Calmini header, 2 1/4 pipes, flowmaster Muffler, K&N drop-in Filter, extended breather hoses,Delta cam, 2core Radiator
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Re: Heads, valves and a few other questions about 91-94 heads
[Re: JamesW]
#559745
03/04/05 11:08 PM
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Joined: Jun 2001
Posts: 846
Rock Warrior
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And the valves are the sames size?
from cross-referencing aftermarket parts, I will say yes. from 88-97 all 2.6 share part #'s & specs. I was searching later heads and found one from a 94 Amigo that said 'No AIR tubes'. I have seen underhood shots of a 94 & it had the AIR system, but I wonder if mid-year Isuzu made the change?
2.6 Trooper
2.0 Impulse Turbo
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