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V · 01-25-2006, 04:27 PM

In a few weeks I'm gonna start working on my 1985 Iroc-Z, the motor is tired and at least needs a rebuild. So now i have several choices as to motor selections, here they are...

1. stock rebuild of current 305
2. rering a 350 i have already (bored .040" over)
3. 91 305(7k miles on previous rebuild)
4. '87 305 i have from a previous vehicle (ran great)
5. 383 stroker(rering and new cam would be needed)

on top of that, i need to decide if i want to re-use the elec. quadrajet and oem distributor or if i'll just go regular carb and new dist.
if i chose the 383, i need to find an exteranly balanced 153t flywheel for a 2 piece rear main seal(i have yet to find one anywhere) The car is a 5spd, with factory 3.73 gears, flowmaster catback, and ttops. I want it as a cruiser, I dont care if its that fast and i prefer it to be somewhat fuel efficient(i wont go tpi or such though) I have other plans for this car that will make it stick out. I may do subframes.

As of now im leaning towards the '91 or '87 305(i'll just need to buy a 153t 1 piece RMS flywheel) and i'll switch to a holley carb and a MSD pro billet distributor w/ blaster coil and 6A ignition box(i have all those ignition parts already), id also be using edelbrock TES headers i have layign around.

Whats everyone think?

01-25-2006, 04:27 PM	#1
V Stalker Join Date: Aug 2004 Posts: 12,080 iTrader: (12)	picking the motor for my IROC... In a few weeks I'm gonna start working on my 1985 Iroc-Z, the motor is tired and at least needs a rebuild. So now i have several choices as to motor selections, here they are... 1. stock rebuild of current 305 2. rering a 350 i have already (bored .040" over) 3. 91 305(7k miles on previous rebuild) 4. '87 305 i have from a previous vehicle (ran great) 5. 383 stroker(rering and new cam would be needed) on top of that, i need to decide if i want to re-use the elec. quadrajet and oem distributor or if i'll just go regular carb and new dist. if i chose the 383, i need to find an exteranly balanced 153t flywheel for a 2 piece rear main seal(i have yet to find one anywhere) The car is a 5spd, with factory 3.73 gears, flowmaster catback, and ttops. I want it as a cruiser, I dont care if its that fast and i prefer it to be somewhat fuel efficient(i wont go tpi or such though) I have other plans for this car that will make it stick out. I may do subframes. As of now im leaning towards the '91 or '87 305(i'll just need to buy a 153t 1 piece RMS flywheel) and i'll switch to a holley carb and a MSD pro billet distributor w/ blaster coil and 6A ignition box(i have all those ignition parts already), id also be using edelbrock TES headers i have layign around. Whats everyone think?