motor build

[bogginboy]

a few buddies and i are putting motors togather at this point... i just happen to have a motor sittin here that needs some loving... i can put them togather to run but not sure what combos make power


what heads should i get at what cut???? id still like to run pump gas no race fuel in the truck.. i gotta run that in all my sleds.. im tired of my mod sled having more power at the track with 280 horse then some of my trucks....

im looking to make around 450 500 horse or some where in that neighbor hood... what do yall got for me... thanks alot in advace

 

[68MUDSTUD]

low compression and forced induction.

 

[bogginboy]

would force induction be a good way to go for a mud truck?

 

[resurrected_jimmy]

As long as you don't force feed it mud...

Seriously it depends on what your goin to do with it, of your just going to run passesin bogs then a forced induction set up is something to look at. If you plan on running it all day long playing in the mud then colling may become an issue. Blowers generate a lot of heat and cetrifical type supercharges startmaking power a little higher in the rpm range. I don't know much about turbos on gas motors but its another option.

Some good things to know here whould be what are you starting with (350 SB, 454 BBC) and how much do you want to spend?

 

[bogginboy]

im not looking to go radical... its jsut a wheeling rig that i drive around town as well... its got a 465 tranny and308 t case with 456sor 488 by the times its done on 39.5 boggers.. i will drive it around town and to class everynow and then but mostly a toy... do lots of thirsty thrusday outings with it and weekend wheeling... no straight pit boggs

 

[ncgamedog]

450-500hp aint gonna happen on pump gas friend unless your ready to spend big dollars and then youd be way better off with a crate engine like a man-o-war/merlin or vendor of your choice. its takes an extremley well balanced tune to do what your talking about. forced induction or NA it will be expensive to run that kind of hp on pump gas. you could make a reasonable 350-375 on a 383ci or 406ci but it will still be a pretty penny. heres a small block http://store.summitracing.com/partdetail.asp?part=WRL%2D101001&autoview=sku

best bang for your buck i could find with the numbers your wanting. these engines are set up to run on pump gas. if you want somthing to turn 40's good and drive to school i would say stick to the 383 or 406. with alum. heads and a good rotating assembly about 9-9.5:1 comp. good full roller system you could make enough hp to be real fun. hope this helps- justin

 

[bogginboy]

he man ya that helps alot.. trust me this isnt my first rig that ive built... i built 4 trucks while in high school so ive had my fun of trucks and ****... i had a 383 in one and i just buitl a k5 over the winter thats got a 400 in it that i sold when a guy off the street stopped at my place of bussiness and offfered me cash for it and wanted it right then... so that one left witha dana 60 400 small block and a brand new set of 39.5 tsl's on it with only a few rolling feet on them.. rolled it outa the shop and drove it around the back of the building and tested it out....

 

[ncgamedog]

well... sounds like you've got it covered then. good luck

 

[Greg72]

450 - 500HP are big boy numbers. You don't just "get" those numbers by throwing some parts together....and no matter what, it's going to cost some serious $$$$.

There is a reason why you don't see those kind of power numbers very often in real life....though LOTS of people claim to have motors with that kind of jam.

If you are truly serious about making that power as inexpensively as possible, I'd look for the largest displacement you can find. Making power with lots of cubes is a lot easier and cheaper than trying to do it with some exotic, small displacement engine with blowers or turbos.... but again, even a large-cube motor is going to cost some heavy bucks to put together.....you still need quality parts (ie HEADS) to get the numbers you're talking about.

 

[smalltruckbigcid]

I did a 383 that dyno'ed 450hp and 470tq at the flywheel on pump premium. It has 10.4-1 compression with a roller cam and Trick Flow heads. This engine was all done at 5800rpm so shifting is done at 6100.

By the time it was in the car the owner has over $6ooo in it with all the parts.
If it was as easy as evryone says many people would be doing it.
George