Frank Enstein
Best. Day. EVER!
ZyBar coating will drop the underhood temp a bunch more than wrapping the headers.
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I picked up the 2 piece aluminum bracket system off a TBI 350 from a U-pic yard..there must be a few of those places in Missouri, maybe even find a parts truck and tow it to your place ? the hydroboost is really only a extra "nipple" on the PS pump in relation to all the brackets etc..
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Greetings Gentlemen:
Odd as it is.... I'm considering going the opposite direction, BBC to SBC.
BACKGROUND
I have a 1988 C3500 Dually, single cab restoration / mod project.
The stock 454 had a nice mild performance/towing rebuild, converted to Carb.
Turbo 400 transmission was also professionally performance rebuilt.
Rear gear ratio is stock 4:10. It's all pretty fresh, less than 10k miles on rebuild.
My intended purpose for the truck is to tow 24-27' boats short distances to boat ramp. I will likely never tow anything over 6-7k pounds and on occasion enjoy cruising the truck (non-towing) on the highway 250 miles, each way, back and forth to the lake. With the TH400 and 4:10 gears I'm at about 3400 rpm @ 65mph.
Spinning 454+ cubes at 3400 is simply a waste. The engine could be repurposed for a friends boat.
I'm very interested in purchasing a GM crate HT383 motor to use with the existing TH400 and 4:10 gear ratio. Seems the HT383 torque curve would be well suited for my needs. The truck is emissions exempt.
INPUT PLEASE
I believe mating the TH400 to a SBC will pose no problem.
My concern is frame mounts and drive pulley/mounting brackets. The truck has A/C and hydroboost power steering / brakes.
I'll love to get feedback regarding what bracket changes / mod's are required for the BB to SB swap.
Unfortunately, I will have little time to find a junkyard donor for components.
I'd entertain an "off the shelf" serpentine belt pulley/bracket kit, just haven't found one for a SBC with hydroboost.
Are components from 3/4ton (c/k 2500) trucks interchangeable? Do they use hydroboost?
I will genuinely appreciate any time you could devote towards guidance.
Thank you kindly.
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Hi 88dually, there might be a off the shelf alternative if you are willing to pay. I recall youtuber "Eric the Car guy" had a March pulley setup on his GMT 400..KRS1
Kind thanks for your response and efforts. Looks like I'm going "yarding" this spring