Since the Duramax diesel uses aluminum 32 valve heads that are pushrod actuated. It is possible to bolt these heads onto an LS1 block? If these heads are a direct bolt-on than this would be a crazy combination!

http://www.truckworld.com/Truck-Test...silverado.html

 

Don't diesel engines have an obscene amount of compression? I would imaging the chambers are tiny, and you're probably looking at valve/piston interference with our higher valve lifts.

 

to think they'll 'bolt on' is probably dreaming
i doubt even with work they'd match up, but then again i know almost nothing about the duramax

so out of curiosity.... what block casting do the duramax's use?

 

The Duramax is an Isuzu engine. It has nothing in common with a GM block.

Diesel heads have no combustion chambers in the heads. The combustion chamber is in the top of the piston. If there was some way to bolt the heads on, the valve train geometry wouldn't work.

You might as well be asking if Ford 4.6L heads will bolt on.

 

will ford 4.6L heads bolt on?

 

plus you would need another cam to push all those extra valves

 

32V Dominion heads work w/ the stock cam/pushrods

 

First, by design diesel heads have to be different then gas heads (spark plug, vs injector…).

If it wasn’t for that the most cost effective way to go is to find a head that has the same bore spacing, though it would be more difficult on a V 8 engine. A good example of this is that the Volvo DOHC heads can be made to fit a ford 2.3, only needing modifications for one bolt hole per cylinder and working out appropriate manifolds. Assorted SBC and V8 Poncho parts can be made to work on Iron duke 2.5L 4’s, and aftermarket blocs are available that make most V8 heads a bolt on.

 

Why would you even bother with the cost/price of 32v heads? The LS1 Heads are pretty good from the factory, and produce awesome flow numbers with a little work.....

 

32 is better then 16?

Personally, I'd be happy to get an LS1 style head on a traditional SBC, the best of both worlds...

 

You can.
The GM Splayed valve head, commonly known among racers as the 517 is a symmetrical port head just like the LS1/LS6. Better yet, it uses a valve cant.
The same can be said of the 'old' Dart Buick (Chevy small-block) heads. Brodix also has a symmetrical port head, the BD 2000. So there are choices if you have the money. On top of that, I'd say that the SB2.2 is a better head than the LS, even without the symmetric ports.

-Mindgame

 

Except with a small block Ford...

http://forums.stangnet.com/showthrea...hreadid=261999

 

Correct me if I'm wrong, but these do have a similar design, but MUCH larger, less streetable ports. For that matter, even if they did have similar port sizing/streetability, by the time I get them running (intake, exhaust, valvetrain...) they'll cost me more then swapping a complete LS1.

 

Maybe you could fit a Ferrari F1 head with electronic valve actuation on a big block and throw it in your 4th gen.

Maybe pigs will fly.

Rich Krause

 

LOL!

'Warthogs' fly.

Strange thread, this.