496 builds

[SUBFAN]

Which is easier cheaper to use for this? A 427 TD, or a regular 454? Both are Gen IV's....

Anybody have experience in this or advantages/disadvantages to either one?

 

[JEBSR]

The only differance in a 427 and 454 is the crank, don't know about a tall deck though. With that in mind I would get whichever is availible. I'm considering doing a 496 out of my current 468 for my GTO as well.

 

[sweetk30]

thay say tall deck for more room for the longer rods.

 

[SUBFAN]

I'm considering doing a 496 out of my current 468 for my GTO as well.

AW man, I didn't read that....Nothing wrong with Poncho power

 

[JEBSR]

Too expensive. Thats why I'm running a 468 (.060 over 454) now

 

[bayou blazer]

The tall deck will use a different manifold that is not as common as the regular deck height BBC. you can use adapters to fit any of the more common big block manifolds, I think Milodon makes some. A lot of the racers use tall decks to get monster stroke big blocks and many of the aftermarket tall deck manifolds are racing single plane ones.

 

[k20]

Tall Deck will let you run a longer rod, but it uses a different manifold, headers will be a pain to find, etc. Just go with a 454.

 

[nvrenuf]

"Russ" just did a 496 conversion in his 90 tbi'd V3500 using a stroker crank in a 454.

 

[Ryan B.]

496 eh?
How bout an 8.1L? Not only do you get the 496 but you get todays technology - Sequential multiport fuel injection on the vortec engines.
We just swapped an '04 8.1L in my buddys crew cab. its a torque monster.
The efi on his '04 8.1L is almost the same as my '04 6.0L.