GMPP HT 3.4 swap into s10

[60degrees10]

Ok heres my s10 which use to be a tired ole 2.8, but now the new HT 3.4 powerplant takes its place.

Mod's include:
Edelbrock 4 brl intake
holley 600cfm 4brl carb
accel hei coil
accel 8mm wires
hedman street headers
and a lil bit of chrome to make it stand out

Future mod's include:
comp 260H cam
1.6 rockers
msd cap and rotor,coil,wires, and 6AL ignition box
vette radiator
16 inch electric fan
8.5 disk brake rear with 3.73 gears and a zexel posi

[robertisaar]

how fast are you spinning that 3.4? that 600cfm carb sounds like way too much......

http://www.4secondsflat.com/Carb_CFM_Calculator.html

that should get you pointed in the right direction

[60degrees10]

yea a 390 cfm 4brl is what i was told would work, but i've been using the 600cfm holley for a little over 7k miles now and it runs great. plus i just happend to pull that carb off another one of my project vehicles and i used it.

[Superdave]

the HT 3.4 allready has the Crane H260-2 camshaft installed, the Comp 260 would be a sideways step.. If you want more top end power with a healthy idle the Crane H272-2 cam might do the trick.

Nice swap though!

[robertisaar]

yea a 390 cfm 4brl is what i was told would work, but i've been using the 600cfm holley for a little over 7k miles now and it runs great. plus i just happend to pull that carb off another one of my project vehicles and i used it.

if you want to spend the time to get it running great, then a 1200cfm double pumper might work eventually but it would take a while to get there..... that and with a carb that big the off idle to WOT bog would be about as bad as a turbo meant for a big block stuck on a metro.....

but if it works, it works....

[ezrollin]

The HT 3.4 cam is a good daily driver with a good power boost,next step up would be the 272 but you might want to talk to someone who's running one before making any changes. I ran a 390 on mine,can't imagine a 600 on anything but an all out engine,your secondaries may not even be opening.

[60degrees10]

thanks i'll look into that, like i said im learning as i go. This 6 is new to me im use to hot rods and drag racing, but i just want this to be my daily. Might run it down the local strip on the weekends.