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The vette heads have the pre 86 center bolts
The Vortec conversion requires a different intake and you loose the EGR.
A Roller cam and a chip...
A Corvette/Iroc L98 roller cam works well if you want low end torque.
The 193 heads run out of steam above 4500 rpm.
My 89 k1500 runs good with...
Irene just missed us Yesterday, though we did get some wind and rain from the outer bands.
For you guys that live in the Carolina's and...
That would work fine with a stock head
Somewhere along the line the heads have had the cr*p cut off of them
(i hope you are not using the...
get to operating temp
let cool for an hour or two
GM makes 2 mellonized gears
One for the .490" shaft Large Cap HEI GM# 10456423
and they make one for the small cap HEI with the .430 shaft...
Can't you just install thick wall valve guide liners to use a 11/32" stem diameter valve?
something like this?...
If you are looking for something that fits under the stock hood take a look at the OEM aluminum Q-jet manifold from the late 70's/early 80's...
I see from your sig that you are in Europe
Euro oils and US oils are formulated differently (US has the EPA to thank for that)
If you were in...
I used Sealed Power H345NP
1.560 comp height
the set I...
Take a look at the ZZ4 balancer
$86 at Pace
As a Vortec vs Swirl port comparison I can offer this
In 2000 I bought a new Tahoe Limited with the L31 5.7
I still have it with 65,000 miles...
Funny you should mention that
GM put swirl port heads on the LS9
No, not the 193 TBI heads
But they do have a wing like the TBI heads
There is more than one
It should have 4 O2 sensors
Special carbide drill bits are available for drilling hardened steel
For my 89 K1500/5.7/3.42's/700r4/ stock 265-75-16's
I went with the L98 5 speed roller
a liittle mild with 202*/207* @ .050"
and a low .430...
Could be Brownfields
Is the A with the circle about the size of a nickle?
X2 in the impact, I use a leather welding glove to hold the fan and bump it with the impact to remove and install the nut.