Biggest baddest 4.8
09-20-2004 | 02:07 PM
#43
TECH Enthusiast
Joined: Aug 2004
Posts: 628
Likes: 0
From: Richmond, Texas
Originally Posted by marc_w
That's what I was figuring - all these motors kill '60's.
The way it was worded, I thought there was something different with the 4.8's.
The way it was worded, I thought there was something different with the 4.8's.
09-20-2004 | 02:09 PM
#44
Originally Posted by ohohsilverado
Not trying to hijack but why is it that the 4.8's kill the '60's?
its just the 4l60 is very weak. so weak even a 4.8 with less torque could bust it.
09-20-2004 | 02:20 PM
#45
here is a little list of what i have done:
Magna charger with a 3.25 pulley
ARE Corvette heads ported and polished
224 114lsa comp cam
Extensivly built 4l60e
4.11 gears
and LS1 edit, tuned by Don kinder (slowhawk)
thats the big stuff. Soon there will be a forger lower end on that list.
Magna charger with a 3.25 pulley
ARE Corvette heads ported and polished
224 114lsa comp cam
Extensivly built 4l60e
4.11 gears
and LS1 edit, tuned by Don kinder (slowhawk)
thats the big stuff. Soon there will be a forger lower end on that list.
09-20-2004 | 02:28 PM
#46
Sweet.
Curious, what size valves did you go with on your vette heads?
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I guess I should rephrase that. What did ARE do about the bore size of your 4.8 matting up to the ls1/6? heads used on a larger bore.
Curious, what size valves did you go with on your vette heads?
----
I guess I should rephrase that. What did ARE do about the bore size of your 4.8 matting up to the ls1/6? heads used on a larger bore.
09-20-2004 | 02:34 PM
#47
Originally Posted by LTNKLR01
here is a little list of what i have done:
Magna charger with a 3.25 pulley
ARE Corvette heads ported and polished
224 114lsa comp cam
Extensivly built 4l60e
4.11 gears
and LS1 edit, tuned by Don kinder (slowhawk)
thats the big stuff. Soon there will be a forger lower end on that list.
Magna charger with a 3.25 pulley
ARE Corvette heads ported and polished
224 114lsa comp cam
Extensivly built 4l60e
4.11 gears
and LS1 edit, tuned by Don kinder (slowhawk)
thats the big stuff. Soon there will be a forger lower end on that list.
09-20-2004 | 03:07 PM
#48
they are ls1's. I really dont know what size they are. i ordered them through tbyrne and some where in the mess of things they lost the specs on them. so the head specs are really unknown. but i am tearin the motor apart soon and am goin to have the heads sent out and flow tested so i will then know what the specs actually are.
09-20-2004 | 04:50 PM
#49
TECH Fanatic
Joined: May 2004
Posts: 1,087
Likes: 0
From: Cibolo Tx
Originally Posted by LTNKLR01
ya if you do the math it is 293.2 or something. gm just rounds it up. just like a "5.7 350" is actually only 347ci.
Sorry for being off-subject. Hope it ends up being a good build. Small displacement but some of those Ford guys are getting a lot out of those 4.6s.
Chevy has the largest after-market,by far.
09-20-2004 | 06:15 PM
#50
It would be a round-down,right(for the 293)? That's what the '294' in my name is for...read it as that somewhere...wrongly it seems.
Check that out Shandy.
Small displacement but some of those Ford guys are getting a lot out of those 4.6s.
