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Old 03-03-2014, 07:42 PM
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Originally Posted by gearheadslife View Post
The point tech was making is your c-10 isn't all that much lighter than the town car my 71 c-10 is 4039 ish pounds a 84 is going to be close to 4800 give or take.. the town car is about that give or take a 100lb

The problem you are going to have is to get a 350 c.i.d. engine to push north of 500 hp you move the power curve up the rpm range. That means the engine is a dog under 3000-3500 rpm.. and in a heavy car/truck it becomes a slug.. ya it'll go like a bat outta hell after you get to 3500rpm..
even a 383 at 500hp will be a tad soggy in the lower end, heavy needs TORQUE to move it.. not hp. A383 with a hairdrier or two, will make for a mighty fast/quick vehicle but not for 5000.oo ,
Yes you might get the engine together and running for 5000.oo but the trans won't live behind it, nor will the driveshaft or the rear end..
Making 500hp is the easy part.. getting it to the ground without extra parts hitting the ground is the trick..
And to be honest, an honest 400hp 380ft lb 350 or 383 will cost 3500-5000 depending on what you use.. will be hard enough to get to the pavement without breaking stuff or the tires just going up in smoke..
Okay, I understand that, well help me out man, staying with a GM block sbc or bbc, non LS based, what should I be looking for? Ill take away the price limit, I'll be able to afford everything long before ill be able to start putting everything together, I work way to much. Just hit me with something. Im open to anything right now. I just want a fun vehicle.

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Old 03-03-2014, 07:45 PM
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Originally Posted by cprflash View Post
Okay, I understand that, well help me out man, staying with a GM block sbc or bbc, non LS based, what should I be looking for? Ill take away the price limit, I'll be able to afford everything long before ill be able to start putting everything together, I work way to much. Just hit me with something. Im open to anything right now. I just want a fun vehicle.
Are we still using the big ford? Are you interested in any big car oddball GM platforms?
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Old 03-03-2014, 08:05 PM
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Originally Posted by cprflash View Post
Okay, I understand that, well help me out man, staying with a GM block sbc or bbc, non LS based, what should I be looking for? Ill take away the price limit, I'll be able to afford everything long before ill be able to start putting everything together, I work way to much. Just hit me with something. Im open to anything right now. I just want a fun vehicle.
have you even driven an honest 350-400hp vehicle..
torque slams you into the seat, hp sells cars
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Old 03-03-2014, 08:22 PM
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Originally Posted by gearheadslife View Post
have you even driven an honest 350-400hp vehicle..
torque slams you into the seat, hp sells cars
Ive driven a 440 hp/ 360 lb/ft torque 1967 Mercury Cougar that my dad and i built a couple years back. Still waiting on the day he gives me the keys for good. Lol. Big Ford is out. Ill stick to what I already have, my C10.
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Old 03-03-2014, 08:37 PM
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C-10 quick and reliable?
Build a 450-500 hp 454,the best o-drive automatic and 5.38 gears.It will melt tires,accelerate well for a big truck and be somewhat drive able with an over drive
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Old 03-03-2014, 09:00 PM
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C-10 quick and reliable?
Build a 450-500 hp 454,the best o-drive automatic and 5.38 gears.It will melt tires,accelerate well for a big truck and be somewhat drive able with an over drive
What specs on the 454? Roundabout total cost on just engine?
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Old 03-03-2014, 09:09 PM
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you have to search for engine parts/costs in your area,,,
049 headsor better,ported. 225 intake valves and 1.88 exhaust valves
RPM intake
850 Holley or better
headers like Hooker Competition series
cam like this
120605-12 CL120605-12 286 300 233 247 .600 .612 112 108 Hyd.
2500-6200 Mild idle, Hot Street. Great mid range performance. 9.5:1+ CR, 2500+ stall.
go 9.5:1 compression for GM cast heads
If you buy better aluminum heads then make CR 10.3:1
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Old 03-03-2014, 09:17 PM
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rough costs?
Used LS-5 or look for a short block and buy what ever heads you want.They need to flow 300 CFM
machine work including balancing,squaring,decking,and custom fitting the pistons,(maybe machining pistons for valve clearance
$1200.oo ish
Heads will be $1200-1500 with porting and installing bigger valves.
Cam and kit over $1,000
forged pistons,,
rings bearings,timing chain,Gaskets, misc. fastners
good ignition system with rev limiter
Holley HP $600.oo custom built
manifold
headers,
fuel pump and regulator
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Old 03-04-2014, 02:40 AM
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the big block swap.. unless you buy a complete 454 fully dressed, meaning with the alt/ps pump/water pump/ ac compressor and all the brackets and pulleys.. list like above are , well in my eyes a waste of time..
no idea where you are at.. but scope out ebay and craigs list/et for 73-87 trucks with a big block in it.. there are many that are running but the body is rotting off them.. this is the way to go.. if on a budget.. as that rot box will supply you with the frame stands for a big block (I know the 67-72 are different small block to big block and my guess is the 73-87 are the same deal as the frame didn't change enough..(the front engine crossmember bolts into a 60 or 62 through 72 truck (you can sell this to owners of 70 back truck owners that want disc brakes to make part of your big block buy in less) you also get the correct radiator and fan shroud,fan/clutch, the radiator might be junk but at least you'll have something to match a new one to..
you'll get the front dress brackets and pulleys and alt/pspump/etc even if they are used just for core charges (alt,ac compressor,starter) it can knock 100-200 off your engine swap cost..
If you are lucky it'll have a hydra boost brake booster.. it'll need new seals but now you don't need to worry about vacuum for your power brakes you can go as wild on the cam as your heart desires.. and if 2wd you got a th400 trans to back the 454 if you don't go overdrive right off the bat..
then you part the rest.. and scrap the left overs and have got the 454 for FREE.. and a bunch of extra parts for your 84..

NOW you can dream up the cost of building your bigblock..

buying a short block or long block and not having the frame stands and assessor front dress.. can cost you more in the long run, than if you got a running rot box and pulled the 454 and scraped the rest..
I got lucky the yard a mile from me had a 84-6 dually with a 454 in it.. and got the engine fully dressed.. oil pan to air cleaner flexplate to fan (alt/ps pump/frame brackets/new starter the works)for 800.oo
and opened it up and it looked to good for the miles on the truck.. so I went back to buy the th400 and it was already gone.. but the glove box had the receipt for the replacement g.m. new long block and was dated 4 months before I bought the engine so it's basicly new.. wish I found the receipt before I unbolted the whole works.. but..
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