Best 454 block for rebuild and parts

[bp71k5]

I've found a couple wrecking yard 454 motors in interesting in taking home with me. One is out of a 93 and other is out of an early 80's.

I notice Jegs and summit seem to have more part selection for the older 2-piece seal blocks. Any advantage/disadvantage to the newer block other than the main seal (which I prefer over the 2-piece)?

 

[nvrenuf]

There are 3 versions, gen IV, V & VI. I'm sure that there's an argument that they're all good but I prefer the 2 pc gen IV's just for the easy mass coverage. I would probably stay away from a gen V simply because its a short run version and interchangeability is a hair more difficult. The gen VI is supposed to be really nice with lots of all around interchangeability and improvements but I have no experience with them.

 

[GreenieK30]

1996-2000 has a factory roller cam.

 

[kgblazerfive]

What is you end result going to be ?

 

[bp71k5]

What is you end result going to be ?

Leak free as possible, TBI powered, budget power, aluminum heads.

 

[kgblazerfive]

Run from the TBI, no tune ability. Just get any one then and put some after market aluminum heads. Get a good intake and then get a self tuning injection system.

 

[sweetk30]

Leak free as possible, TBI powered, budget power, aluminum heads.

bbc + budget + aluminum heads =

Run from the TBI, no tune ability. Just get any one then and put some after market aluminum heads. Get a good intake and then get a self tuning injection system.

x2 on this option . anymore I would say skip tbi and do holley sniper or fitech unit .

also get rid of the tiny cam they get stock . but this also requires new valve spings.

 

[bp71k5]

ha ha. I meant that I'm already over budget on weight so that's why I need the aluminum heads.

I'm also already set up to tune and burn chips for TBI so that's the part of the budget that I was trying to keep. I may go after market injection later but for now this is the way it's going to be

 

[skunked]

why not put a stock TBI engine in there? Upgrade and do your chip burning later. @MAXMAN has a complete 454 TBI setup for sale.

 

[bp71k5]

Any downside to a marine motor like this?

https://www.ebay.com/itm/262969597939

 

[bp71k5]

why not put a stock TBI engine in there? Upgrade and do your chip burning later. @MAXMAN has a complete 454 TBI setup for sale.

I'm willing to do that. Just need to find the right one.

 

[ekajkrats]

Come up here and give this one a test drive before you buy: https://sfbay.craigslist.org/nby/pts/6117787339.html

 

[76zimmer]

Any downside to a marine motor like this?

https://www.ebay.com/itm/262969597939

small port heads...good to about 3500rpm, If your going aluminum, why not just look for a shortblock?

 

[bp71k5]

small port heads...good to about 3500rpm, If your going aluminum, why not just look for a shortblock?

I'd take a shortblock. Best I can find so far is $1375 on eBay.

 

[skunked]

There's several longblocks on sac Craigslist for under $1k

 

[Hoss7979]

There's several longblocks on sac Craigslist for under $1k

$1k for a bbc that needs to be rebuilt is pricey.....

bbc + budget + aluminum heads =

I was thinking the same thing!!!

 

[skunked]

$1k for a bbc that needs to be rebuilt is pricey.....

Under a $1k and I didn't say they needed to be rebuilt.

 

[Hoss7979]

Under a $1k and I didn't say they needed to be rebuilt.

Run @ your own risk.....I see!
Better safe than sorry....

 

[Truckman4life]

I can't remember but I believe some of the early 90s tbi big blocks are oddball and there isn't much you can do with them.

 

[sweetk30]

I can't remember but I believe some of the early 90s tbi big blocks are oddball and there isn't much you can do with them.

gen 5 only few years of them . not heard the best info on them . guys tend to go gen IV or gen VI