What will I need to do to run d0ve heads on a d1ve block? What pushrods will I need to run? What compression would that create with stock pistons?

 

too much for pump gas... go get a pair of d3ve's- they flow the same and are cheaper and you can use pump gas with them

 

Running pump gas isn't an issue. It's for the engine in my jet boat, so I'm not going to be anywhere near a pump anyway

 

Steamer,
The issue of running those heads on a D1VE block in nonexistant. I think the question you are looking for is "what type of pistons would I have to install to get this type of performance out of a 460 for my jet boat that will run 6000 rpm plus wide open?" Think of your engine build like tracking and balancing the head of a 53. Every blade has to work with one another to get the smoothest results. Same goes with an engine. Slap on a set of 76cc chamber heads to your stock block/rotating assembly will give you some great results for a limited amount of time until you blow a hole in a piston due to detonation. I also would have to ask if you think you might want to put a blower or another power adder on the engine later on down the road. Build the short block engine with all your thoughts and dreams installed. Why blow good money away for nothing. Oh and since you plan on putting it in a boat, why not stroke the thing to a 531 or 557. Give it some grunt.

 

I don't plan on putting a blower or turbo on it. What I want is the most I can get out of a naturally aspirated 460(without spending crazy amounts of money). I don't want to run a stroker, just personal preference. I found a set of cheap ported d0ve heads, and was wondering what I would need to do to run them. As far as the detonation, I plan on a high rev short block rebuild soon anyway(as long as it doesn't shoot a rod through the boat and sink it).

I'm surprised you got my name. Did you spend any time in the military?

 

the shortblock will be fine stock... youll need a really big cam to bleed off that much compression though... stock cam youd be looking at at least 100ll if not 105 octane
to get it down to even 93 octane premium pump gas youd need something like crane cams #354561 if not a little bigger- and a valve trane to match, and as for pushrods youll have to get a checking pushrod and get custom rods

 

To give you an example, I completely rebuilt my motor with new everything except for the block, crank, and head castings for just over $5000. With that said what do the pistons look like in your 460? If they have a huge sink hole, 20 cc dish, in them then you can run the D0VE heads with a reasonable compression ratio. If they are flattops then you'll have 10.5 or higher compression. To take away the guess work use the compression ratio calculator in the articale/specs tab at the top of the page.

I am surprized you didn't get airharley. LOL Your only what a 1/4 mile from the 2 HMLA's at New River. I am still in on the left coast for the next several months.

 

Chopper, I am a jet boat owner and a 460 business owner.

To install D0VE heads onto your jet boat motor in place of the D3VE heads will require the D0VE head's valve train (pushrods, rockers, studs, etc.). If your 460 has the factory cast 22cc dished pistons (likely), then your compresison ratio will be about 9.1:1 and pump gas friendly, 91 octane no problem. The ported heads will dramatically improve power in your case.

Since you already have to swap out the valve train, I'd recommend a roller rocker upgrade which is easier to put together than locating the early style oem valve train parts and much more reliable at the sustained 4900 or so rpms you will be running your engine. Further, if you get 1.8 ratio rockers for this specific application, you will increase slightly your lift at the valve with your existing camshaft and increase power just so slightly. We've done this very mod over and over (ported big valve D0VEs and 1.8's onto stock 460 marine engines) and under the best circumstances have seen as much as a 90HP increase with the oem camshaft (less HP likely, but the potential is there).

Of course, yes, we sell the rockers to do this. Email if interested.

Paul
highflowdynamics@earthlink.net

 

Are d0ve and d3ve pushrods the same length? The only pushrods that I have found(other than CJ/SCJ) are all 8.550"

 

if youre getting ported heads they may have been milled off a little, or maybe the block has been decked, or maybe the head gasket thickness is different... any of these would make for a different length pushrod... i say get a pushrod length checker to be sure... a nice one is only like 30 dollars and then you wont have to question how long your pushrods are supposed to be- youll know for sure

 

When I put d0ve heads on my d3ve engine that was planted into my old pick up, I found that my valves were not closing due to too long of push rod length with the d3ve push rods. I found the d0ve push rods in a box under a bunch of crap in the garage and all went together well. She ran like a stripe-assed ape. Big difference from the d3ve heads.
The short of it, d3ve push rods are longer than the d0ve push rods. Been there, done that.
Now I think that you are asking about whethe d0ve heads will work with d1ve push rods. Not sure, but I think that they changed heads and rockers in 1971. If this is the case then the d1ve would probably be too long.

 

i am running c8ve-e heads same thing as dove's and a dive block i have the block decked and i still run the same push rods that i was running in my d3 heads but i do run roller rockers so i can adjust them to were i need them i am also running 1.7 BBC rockers trying something new

 

That's what I have now is a c8ve block and heads. Came out of a stock lincoln conti.

Yea, I can only speak from experience for my old truck where I had problems with the d3ve block and pushrods, matching a set of d0ve heads, where the pushrods were too long.
Yes the c8 and d0 should be the same. I thought they changed in 1971 (d1) for smog constraints. But maybe that was later.

 

they changed in 1972, the 1971 engines had the dove heads, they also had a 10.31 deck height, the 68-70 had 10.3 and the 72+ had 10.322- thats where the rod length came into play