What's new
CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.

427 4-bolt main tall deck?

Well, if the crank's not wiped out, it alone is worth the price of admission.
But, I'm one of those nuts that always buys big blocks and parts.
Jimbo
 
You could build a pretty big inch motor with that block. Well worth what it's going for to me.
 
If you're going to rebuild it to stock, I don't think it is a good idea. The heads don't flow worth a crap. But if you can get it for cheap go for it.
 
my buddy has a tall deck with 160,000 miles on it and it still rips, we have the same engine in a c70 dump truck, torque MONSTER deff worth rebuilding
 
Ive heard they have huge low range torque. How would that work with 6.72 rocks and 49's?
 
If its cheap enough to buy, get it. Then bore and stroke it. You can build mega cubic inches with these blocks.

I'd get a stroker crank and take it to over 500 cubes.

The stock crank in the 427's are internally balanced. They are the same in the 396, 402 and 427. 454 is a crank by itself. I'd check out Summit and see what they offer for stroker kits.
 
That engine is either NOT a tall deck or someone has changed the cam and timing around. ALL tall deck engines have a 2 gear gear drive timing with a reverse rotation camshaft.

Just checked on Mortec's site and the casting number does come up as a 427T. Someone must have changed the cam and timing on that engine. Like was already said, you can build BIG cubes with that foundation.
 
4X4HIGH said:
That engine is either NOT a tall deck or someone has changed the cam and timing around. ALL tall deck engines have a 2 gear gear drive timing with a reverse rotation camshaft.

Just checked on Mortec's site and the casting number does come up as a 427T. Someone must have changed the cam and timing on that engine. Like was already said, you can build BIG cubes with that foundation.
Click to expand...

from the same Mortec site:

"If you latch on to a early 366 or 427 tall deck truck motor you may find that it used a gear drive for the camshaft. Chevy and GMC used just two gears to drive the cam which was a "reverse" rotation grind. You can switch these early tall deck motors over to a different "normal rotation" chain driven cam, but make sure you also change the distributor drive gear to a "normal" rotation gear."

http://www.mortec.com/notepg3.htm

maybe about 1/2 way down the page
 
Sorry don't mean to hyjack, but what is a 427 tall deck with propane injection still on it worth??? Found one in a yard yesterday, out of a 90s C-6500 or somehing like that. Was an old propane tank truck...
 
I could have had a complete 427t motor, already out of the truck, for $500 but I turned it down as I didn't need a motor like that. I also read and heard parts for these are a little more costly but that wasn't confirmed.
 
They are only more costly if you're building it back as a tall deck engine. The pistons are what get expensive.
 
So what would I do?

Tear it down, get it cleaned and bored .60 over then find a stroker kit and new heads etc. and go from there. I read these things are capable of over 500 hp.

For $100 bux might as well get it.


Thanks guys!
 
For $100.00 i would already have it sitting in my garage. Yes, tear it apart then buy a stroker kit (not from powerhouse) and build a big inch big block. A .060" overbore with a 4.5" stroke will get you an easy 525 cubes. :D
 
$100!!! You're robbing the owner blind! I'd already have the motor if it were me.

And do like Scott said...
 
You must log in or register to reply here.

Latest Posts

Top Bottom