[mr dude]

hi, so i recantly blew my motor in my 76 jimmy 4x4, it had a 350 sbc in it.i got a hold of a 427 talldeck out of a old gmc 6000 firetruck and was hoping to do a motor swap, just woundering if it would bolt up to my trany"350 th" if i got a bbc flywheel, and if i need new motor mounts, thanks in advance also any tips on how to make a few more hp and tourque would be good on a tight bugedt "im 17"

[sbchevfreak]

The tall deck blocks are kind of boat anchors wthout a fairly significant investment. Heavy, four ring pistons, obviously a taller deck height, ect. This all adds up to some specialty parts. In stock trim, they made gobs of torque down low, but are all done by 3000 - 3500 rpm. They have been used in some high power builds, but it involves specialty pistons, intakes, ect. As a budget build, they are not a good starting point.

[mr dude]

alright well the motor was just rebuit and i picked it up for a really good price and i kinda want to make it fit in my truck, dont supose u could help me about the motor mounts situation, thanks also what if i ran turbo(s) could the botomend handle this stock???? only got 1000 km after rebuild

[willis 77]

the factory tall decks have good crank and rods but heavy pistons makes good low end power but i wouldnt rev it over 4500 in stock trim.i also have a 427 tall block but got 6.585 rods with car pistons i drag race it makes awesome power.

[techinspector1]

Originally Posted by willis 77

the factory tall decks have good crank and rods but heavy pistons makes good low end power but i wouldnt rev it over 4500 in stock trim.i also have a 427 tall block but got 5.585 rods with car pistons i drag race it makes awesome power.

You might want to re-visit the rod length. They'd be about an inch short.

[techinspector1]

Here's a tall deck build I posted a while back....
Cheapo BBC 505 tall deck grunt motor

[willis 77]

youre right 6.585 my bad.instead of a 6.135. in a tall block youre 10.2 where a short block is 9.8