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455 buick

nrspence

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Howdy everyone, nice forum. Im in the process of building a 70 blazer. The blazer has a smooth running 455 buick motor. I want to put a fuel injection system on it. What kit would work good with this motor? What do you all think about this motor for a rockcrawler? I had a toyota truck rockcrawler before i desided to build a fullsize. So the big block power really makes me smile.
 
I think your easiest bet is going to be a TBI 454 setup.

All sorts of options out there realistically, but a stock 454 TBI setup is going to have most of the necessary major components.

Most big block (or large displacement) engines made a ton of torque down low, so I don't see why that 455 won't be good for your intended usage.
 
Unless your looking for balls out horsepower the chevy TBI system dyeager535 recommended is probably the best bet for making good lowend torque and having great reliability and parts availability. The only problem with TBI is it doesn't flow air well for high RPM power. There are things you can do to the system to maximize it for HP's but it will never preform like a MPFI system. I am not sure if there is even an MPFI system available for the 455 though so you may be stuck either way with a TBI setup.

For a rockcrawler like your talking about TBI should work well though. It will give you alot of lowend grunt and some good midrange power too.

Harley
 
Cost is the major factor. Without using stock components (IE, TBI, because it is the ONLY way to cheaply adapt factory parts to a non-corporate motor) you will NOT be able to do this I would say for anything under $2000.

I looked at this for Oldsmobile, and you'll be in the same boat with the Buick. Fuel rails, intakes, and mating that all up with a throttle body, is big $$ for non-corporate (IE stuff GM didn't fuel inject) motors. A 454 throttle body, bolted to a TBI to Q-jet adapter, is going to be amazingly cheap comparatively. No, it won't be port injection, but that's where the cost vs. benefit comes into the equation. Port is better, but it's just a lot more hassle to run if it wasn't done stock.

Check into the EBL system for the EFI control (posts here and on thirdgen.org) and you could likely have it up and running almost instantaneously. Megasquirt could probably do similar.

I'm not a big Buick guy, so I don't know how the distributor situation is for them. With the Oldsmobile, since the Olds engines lasted until 1990, there is no shortage of distributors already set up for electronic control. Doesn't matter that it was carb. You can convert the non-EFI distributors over pretty easily apparently, so it's probably a very slight stumbling block at worst.
 
TA Performance in Scottsdale, AZ has a fuel injection kit for the 455. I beleive it runs about $3500. I had a 72 Riviera with a 455, and was looking into putting the 455 in my K-5 but when i did the research its more economical to just go with a Big Block Chevy. Hope this helps.

www.TAPerformance.com
 
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