"I've not done this but the side mounts arent in the same place on the block as a v8 so using aftermarket v8 side mount brackets wont work without some changes/fabrication."
Are you sure about that? I was under the impression that on the 4.3 V6 that is essentially 3/4 of a 350, the side mount bosses were the same location from the BACK of the block as on a 350. But that would make them different from the front.
not worried about resal as I'm building this to be a cruiser for me,easy on gas and not afrid to go anywhere in it. I'm almost 61 years young and plan on driving this car to my grave.:bowtier:Hi Bobby , my biggest concern would be RESALE a nice trifive should have a straight 6 or a V8 . Don
This company "Jags That Run" makes these mounts to install a SBC V8 for a 4.3 V6 into a Chevy Astro Van. The mounts are shown in the link below. They allow you to mount the SBC in the exact location as the 4.3 V6. They look like you can flip them side to side and mount the V6 on V8 side mounts in a Trifive. When you look for your V6 there's two versions a "Z" & a "W" code one has about 150 hp and one has about 200 hp, sorry I can remember which one's which. The main difference is one is Sequencial multi-port F.I. and the other is throttle body F.I. The Sequencial one is the best.
Don't know except its a 91 roller cam motor with 85 astro van 4 barrel carb manifold and big hei. now in a 70 chevy pick up with late model truck v8 mounts.
I also thought that this would be a good ,easy idea,I tried it in a 57.There were too many things that needed to be changed.Has anyone installed a 4.3 v6 into a tri 5 and if so give me some fee:driver:d back as I plan on doing this to my 56.
Not sure if there is room to flip the mounts to the forward position on the 4.3, I can look at one later with the adapters I've made for installing a V8 in place of a 4.3...Hey Bobby,
This company "Jags That Run" makes these mounts to install a SBC V8 for a 4.3 V6 into a Chevy Astro Van. The mounts are shown in the link below. They allow you to mount the SBC in the exact location as the 4.3 V6. They look like you can flip them side to side and mount the V6 on V8 side mounts in a Trifive.
Thanks Dave I couldn't remember which was which. I had this one in my van, I had to replace the fuel injection unit on mine, the parts dept at my dealership had 3 units in stock at $575 each. The parts guy said they have problems with them that's why they stock so many units."W" is the high output and some of those will be CPI fuel injection...
Central port injection (CPI)
General Motors implemented a system called "central port injection" (CPI) or "central port fuel injection" (CPFI). It uses tubes with poppet valves from a central injector to spray fuel at each intake port rather than the central throttle-body. Pressure specifications typically mirror that of a TBI system. The two variants were CPFI from 1992 to 1995, and CSFI from 1996 and on. CPFI is a batch-fire system, in which fuel is injected to all ports simultaneously. The 1996 and later CSFI system sprays fuel sequentially.