"BIG" truck forum C/40, C/50, C/60 and the like...

[Bigasstrux]

Originally Posted by Bigasstrux

Here's a crewcab on ebay, they are very hard to find!

Sorry, link didn't post. Search ebay under "1987 Chevrolet C70"

[BGRAFX]

Would this make a good BigAssTruck

[jonzcustomshop]

yeah, except they didn't make a dually bed for that style truck, so you would have to make something up... like these ones-

[ETsC10]

This is exactly what this thread needed...some Big Truck Pros!!

Continue on gentlemen...subscribed.

[Bigasstrux]

Originally Posted by ETsC10

This is exactly what this thread needed...some Big Truck Pros!!

Continue on gentlemen...subscribed.

I see you are in Burien, Wa., I sold the red 1987 GMC that is my avatar photo to a longshoreman in Burien last May.

[ETsC10]

Originally Posted by Bigasstrux

I see you are in Burien, Wa., I sold the red 1987 GMC that is my avatar photo to a longshoreman in Burien last May.

Thanks for posting that...I'll keep my eye out for him and scope out your creation closer if I spot him.

It seems that tricking out the big guys has become a bit more common in this area.
Around here, there's still zillions in commercial service; all the way from the local dairies and tow trucks
to delivery drivers and scrap haulers.




.

[jonzcustomshop]

this was for sale on ebay a few years back, had spent its life as a yard truck, had a 409, top speed 45mph!!, sold for around 2600, cheap for what it was/had, would have been a hell of a drive from jersey to montana at 45mph though....

[watahyahknow]

guess the first thing to do is put a gearvendor in there ..... i seen pics once of a gut who put two th350 in series to do the same thing as a gearvendor the second th350 was concverted to a manual and was connected with a special adpter and without a converter to the tail end of the first (i can immagine there would be some delay in driving of though as the seccond autobox need to build up oilpressure to get the band to hook up , in a truck like this there should be plenty of room to do sumtin like that

[special-K]

About any engine will run these trucks. The transmission needs to be tough enough for the weight. And,it's the rear end gearing that determines the hiway speed as well as torque. 1:1 is 1:1,it's what ratios get you there that matter. I'd suggest an engine with good torque characteristics. Finding a "made for trucks" engine would be perfect,like a 366-427 BBC. These have longer stroke than the "made for cars" BBCs. I have heard tales of car 396s going into MD trucks and not lasting long at all. Low gears mean higher revs at hiway speed and getting going takes torque. You want a longer stroke. I imagine for a SBC a 383 would do good. I'd prefer some sort of diesel in a MD.
Transmissions that come in these trucks are best. The Clark 5spd is tried and true. That's 5 gears to 1:1,no overdrive. Overdrive transmissions are usually HD truck items and a whole lot bigger. MD trucks used 2spd rears to help give good low speed power and better hiway speeds,kinda like what a Gear Vendors unit does for lighter vehicles.

[Old Truck Man]

Originally Posted by special-K

About any engine will run these trucks. The transmission needs to be tough enough for the weight. And,it's the rear end gearing that determines the hiway speed as well as torque. 1:1 is 1:1,it's what ratios get you there that matter. I'd suggest an engine with good torque characteristics. Finding a "made for trucks" engine would be perfect,like a 366-427 BBC. These have longer stroke than the "made for cars" BBCs. I have heard tales of car 396s going into MD trucks and not lasting long at all. Low gears mean higher revs at hiway speed and getting going takes torque. You want a longer stroke. I imagine for a SBC a 383 would do good. I'd prefer some sort of diesel in a MD.
Transmissions that come in these trucks are best. The Clark 5spd is tried and true. That's 5 gears to 1:1,no overdrive. Overdrive transmissions are usually HD truck items and a whole lot bigger. MD trucks used 2spd rears to help give good low speed power and better hiway speeds,kinda like what a Gear Vendors unit does for lighter vehicles.

There is no difference in the stroke of a car 396 or 427 and a truck 366 or 427. In fact I used a steel 366 crankshaft and a 396 pass block bored it .030 had the crank balanced ant everything worked perfect. The difference is the truck engines have a taller deck. the extra deck requires a longer rod or a piston with a different wrist pin location. the truck engines are lower compression and have different camshafts. The truck engines also has a governor to keep the rpm lower.

[special-K]

Originally Posted by Old Truck Man

There is no difference in the stroke of a car 396 or 427 and a truck 366 or 427. In fact I used a steel 366 crankshaft and a 396 pass block bored it .030 had the crank balanced ant everything worked perfect. The difference is the truck engines have a taller deck. the extra deck requires a longer rod or a piston with a different wrist pin location. the truck engines are lower compression and have different camshafts. The truck engines also has a governor to keep the rpm lower.

You're right about the stroke. That makes sense since the engines are the same displacement. I was focused of other aspects and used the wrong terminology. I guess it's longer reach,yet same stroke. My point was the car vs truck big blocks are set-up/built completely different to accommodate their different uses

[rare86]

I believe the 366 and 427 are short stroke engines and will run at higher rpms versus the 454 which has the longer stroke. The short stroke will run at higher rpms but the 454 has more low end torque. Not sure on the 396. I have one just haven't looked up the specs.
Tire size also has key factor in final engine rpm at highway speeds. Find a good performance calculator and you can figure final engine rpm based off of the tire size, trans and rear gear ratio. Then build an engine accordingly.
Posted via Mobile Device

[special-K]

I have a friend with a '59 REO that he installed a Cat 3208 in. The truck came with a V8 gas motor with a bit less torque and a bit less HP. The gearing was very deep,like between 5:1 and 6:1. He put in a rear with something like 3.54:1,which I didn't realize was even used in bigger trucks. He went from something like 6-7 mpg to 12.5 mpg and picked up something like 15 mph top end.

[C10 - C90 Bill]

It looks like I missed this thread somehow. I sure would like to see a Big Truck forum.

Bill

[special-K]

It would seem a forum for trucks from 40-80/4500-9500 across all years would get some action. It would draw in yet another group through Google searches.It seems any time I Google any specific GM truck model there's usually at least one listing on the first page,especially looking for photos. Another thought would be all GM comercial vehicles yet to be acknowledged here,like StepVans,Vans,El Caminos,Sedan Deliveries...

[C10 - C90 Bill]

I'm wondering if it was posted in a different place that it may get more exposure. It's been here for a while and I just noticed it the other day. At another site I'm a member of we have a Big Truck section and it stays pretty busy. At another site it is all Big Trucks, but all brands are covered. Chevy and GMC included and I have been able to gain a lot more knowledge from them through the years, besides tons of pictures.

Bill

[Critter]

Originally Posted by C10 - C90 Bill

I'm wondering if it was posted in a different place that it may get more exposure. It's been here for a while and I just noticed it the other day....

When I started it, I put it in the main 67-72 truck forum for exposure purposes. After a few days though it got moved here. Not a big deal, that's the way the site works, if it isn't in the right place it gets moved to the right place. Just keep posting and continue drawing attention.

[special-K]

Just keep starting threads on big trucks in whatever year they belong. The more action,the stronger chance of seeing a forum started. Just think of different topics for separate threads,questions,facts,pictures...whatever,and keep them going. Maybe the ones who don't care for the bigger trucks will be our greatest support. If they complain about seeing all these big truck threads,what can be done? As it is now they belong in their proper age group. If they are cluttering that board then they need their own place for those who do enjoy them. The truck message boards move threads right along and there's always been changes made to help spread things out more to keep topics balanced across the board and give threads a chance to get viewed awhile.

[chevytrucking]

I'm looking for a picture of a 47-54 Chevy 1.5 ton conventional cab truck that has had the pickup conversion done. I'm on the lookout for a good 67-72 C50 truck too, but I've already got a good '51. I asked the "Big Ass Trucks" guy the other day if he'd seen one, any of you guys seen a 47-54 shortened with a pickup bed on it?

[bubba327]

Only picture I could find- I thought I had another.....
Saw this one at Northwest Motorfest In Boise Idaho this summer

[chevytrucking]

Yeah, I've found a bunch of pics of COE trucks, but I'm trying to imagine a convential truck. Like the ones that were more common, grain trucks, stake beds, etc.

[watahyahknow]

that looks weird , i think they kept the bed too short or need to raise the bedsides with sumting to make it look right

[bubba327]

I agree. The bedsides should be taller .
I think somebody does make a taller bedside replacement .
Around 1 1/2" taller if I remember, but that may still not be enough with that tall COE cab.
Stake sides would add some height to the visual effect.

But I still kinda like it, it is something different

[special-K]

I don't have any pictures,but I have seen such trucks before. I remember one I saw at the '09 Antique Truck Club of American national meet in Macungie,PA. I didn't get pictures cuz it was raining like mad. It was Woodland Green and sitting on a custom made frame,had Isuzu axles (4 wheel discs),6BT Cummins,and O/D trans. It was done to look like the factory could have built it. The bed was custom made using factory fenders and rear bumper. It even had the splash pan from up front. The guy drove it there from Ohio.
An Advance Design guy not far from me built a white one that was very nice,too. He's the NHRA safety guy around here and he's had it at some shows. His bed is custom and very nice,too. He used pipe to form the edges. It was really clean.

[watahyahknow]

i wonder how it would look if the cut the rearwhall off behind the doors and move it back behind the rearwheels fill in the roof make extra doors and build it like a blazer or suburban or sumtin , dont think they done that before