1200hp 12 valve engine fore sale, 0 miles!

[rgsmith70]

this engine is completely assembled, i'll text you those pics if your interested. 5 years ago or so i built a 12 valve cummins engine. i put it in a 1971 olds cutlass, then ran out of money.. so time to move it! estimated at 1200hp, as long as you have enough turbo. lots done, here is just some. 286110 pistons for a lil lower compression, bigger bowls. pocket porting. left the ports alone to keep up exhaust and intake velocity. cut the guide down a bit in the bowl, but left the swirl ramp in! undercut the sharp step under the valve seat. cut a 10cc combustion chamber in the HEAD, like mundello performance does to some of their work. the cummins valves are extremely shrouded, 125 thousands in below the surface of the head face. so cutting a very small chamber there increases flow dramatically!! as per pics. pollished valves, pistons and the little chamber in the head. surfaced the head and block deck, thicker gasket to compensate. heavier exhaust springs on all 12 valves. (intake and exhaust) 5x17 injectors. pistons are .040 over. crank balanced and the rods balanced within 1 gram! pins and pistons as well. arp head studs. hamilton 188/220 cam. 99 cummins lifters (new) YOU WILL HAVE TO BREAK THE CAM IN!! fresh rebuild never started. the 99 lifter bottoms are a lil bigger then the 12valve ones. 215hp p pump, pinned at 20 degreese. done by diesel specialists inc. in altamont fl. flowed 520 cc's with .024 delivery valves. i have since put half cuts in.. waaaay more fuel with those! no fuel plate. 5k springs. the killer dowl pin has been taken care of.


call if you would like more info... i looked up a similar build on line there and the company wants 17k for theirs

mine is a long block and all together, other miscl. stuff too

call any time. 518-506-3366

I also have this thing on craigs list, lots of pics check the link out.. thanx

http://jacksonville.craigslist.org/pts/5763930878.html

 

[rgsmith70]

here r some pics

 

[AHall]

13k for a cast piston stock rod long block?

 

[BRE]

1200hp on 5x.017?

 

[rgsmith70]

just consider this, look what people are gettin on the dyno with just boltons!! 1000hp 1100hp. no pistons, no extensive head work, no cam. and the stock bottom ends take it all day long.

you price out an injection pump, injectors, cam, head work, head studs, machine work, balancing, the engine it self, labor.. etc and see where you are.

by the time yo get ur parastatic loss calculated, this engine would be right around 1000hp, wheel. i am confident my numbers are fairly accurate. how many heads have you ever seen with a small chamber in them?

look at mundello performance website where they do diesel heads. i think they mostly do olds stuff, but had very good success on some diesel head work..

 

[CorneliusRox]

I don't think they're calling your long block garbage, it just seems like 1000hp on stock rods is normally drifting on borrowed time. Many would say that an engine isn't reliable at that power level without billet connecting rods.

And I do agree that 5x.017's would provide plenty of fuel for that power level.

 

[GOT-Torque]

Combustion chambers in the head look good... It is definitely worth the time to do it, my head guy has been doing them that way for a number of years now. Flow sheets back it up too...

 

[rgsmith70]

thanx got torque... what kinda before and after numbers he have?? just curious

 

[97rada]

Seems like a pretty lofty statement. How has the engine been stored? As well as stock rod bolts being kinda interesting.

 

[khaoskustoms]

Do you know what the final compression ratio calculated out to? 14.5:1??

 

[rgsmith70]

if memory serves i think it was 15:1 so yea, ur close. and i do agree about the bolts, border line for whats there, if i kept it i would change those, don't think it would be a big deal cause of how the rod end is designed. you could just change them out without distorting the rod end. maybe the main bolts too. simple stuff though.

 

[rgsmith70]

engine stored in florida, in the cutlass. all openings plugged off. little dusty now, but of course i would clean it up.

 

[Highwayman]

I'm ashamed to say it, but this is the first head I've seen done like this.

 

[Pudge]

If the head weren't bolted down I'd like to put it on the flow bench and see how it does. Looks like a good job on the work. Free bump

 

[rgsmith70]

don't be ashamed handyman, i never saw a diesel head done like this either. my backround is v8 chevy stuff. i looked at the cummins head when i was puttin it together and saw how shrouded the valves were so i just created a small chamber to unshroud them. the bowl work was just common knowledge for me. that guide was just way to fat.. lol. then i did some research and found i wasn't the first to think of the chamber idea. mondello did it and got great results, so at that point it confirmed i was on the right track.. i left he swirl ramp in cause i like the effect, and think for my combination, it was better left in.

 

[rgsmith70]

piston

 

[RacinDuallie]

what tooling was used on head?:aiwebs_013: No way those chambers was cut in a fixed machine (i.e. Bridgeport / haas / southbend)

explain?op:

 

[9 LIVES]

what tooling was used on head?:aiwebs_013: No way those chambers was cut in a fixed machine (i.e. Bridgeport / haas / southbend)

explain?op:

You can see the wavy and uneven surface from some kind of grinder. Look closely at the close up polished pics. Still way better then what I could do and I consider myself a expert with a grinder and anything metal. :bow:

 

[rgsmith70]

dremmel and one of those 1/4" drive grinders from harbor freight. looks like a giant dremmel. .. and yes there are slight irregularities. but anything under 1/32 of an inch doesn't effect air flow. those irregularities are way smaller then that. the over all shape and shine, (heat reflection), will have way more positive effect then the irregularities would have a negative effect, even if they did. i just mention cause there are some people that would think the irregularities would effect the air flow. all my research led to the 1/32" info, and how that size and smaller does not efffect the airflow.

 

[CorneliusRox]

dremmel and one of those 1/4" drive grinders from harbor freight. looks like a giant dremmel. .. and yes there are slight irregularities. but anything under 1/32 of an inch doesn't effect air flow. those irregularities are way smaller then that. the over all shape and shine, (heat reflection), will have way more positive effect then the irregularities would have a negative effect, even if they did. i just mention cause there are some people that would think the irregularities would effect the air flow. all my research led to the 1/32" info, and how that size and smaller does not efffect the airflow.

Did he fill them with metered water to make sure the volume of each was the same? If not, your compression on each cylinder is going to be off. There's a lot of tutorials online on easy ways to do this yourself with a decent syringe.

Also, the reflectivity of everything polished will be great and reduce the heat transferred through radiation for a few revolutions. Then it'll form a nice dusting of carbon and will preform about the same as everything else. I'm not saying it's bad, just not always worth the labor.