Big Block Hp Capability
- Thread starter 440dartsport
- Start date
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you don't have enouf car for the power they will put out...........Artie:burnout::burnout:
bOb shingler
Well-Known Member
Koleno block $3995 from Hughs and as the add states "not ready for assembly"
So another $1000-1200.
This block let go last race of the season at Woodburn Or.
Didn't even Qualify for the event.
Rod bolt.
Even after market blocks and and parts have there limits.
on this i'm going to say that the block had nothing to do with that hole. you said the block let go but i'll bet that it was a rod that no longer wanted to hang with the other seven.
the key to a stock block is keeping the internal parts as light as possible. the lightest pistons, aluminum rods, timing belt, a perfect balance job and the best balancer on the market. this is just like moper said. fill the block at least 3/4, bore and hone with a plate, aluminum caps, main studs and hone the main bore. you also will have to do the oil mods as well. l prefer the one where you drill, tap and plug the head feeds and turn the #4 cam bearing so the #4 mains gets full time oiling. also drill out all the main oil feeds to 5/16" and using a dual #12 swinging pick-up good hv hp pump with at least a 12qt pan. now the horse power will be limited be the heads that fit and flow the best, your cam, compression, carb or carbs and their size.
440dartsport
Well-Known Member
Just for an update, I have been running 750hp on pump gas with a 77' 440 block thats .055" over with stock main caps and just a Hughes Main Girdle. We have 75 Dyno pulls to 7000rpm and over 2,000 hard miles on it so far. I just pulled the pan and looked at the bearings and everything looks perfect yet so far. As stated earlier, I believe balancing and a light reciprocating weight is key.
inkjunkie
Well-Known Member
And what is a life worth? When I lived in NJ I hung out at Island Dragway. There was a fellow with a Colt that had a tube chassis that had a wedge in it. He went cartwheeling off into the corn fields one night. Luckily he was not hurt. When they found him he was out of the car, sitting on a slick waiting for help to arrive. Block let loose, blew out the motor mount area soaking the rear tires and away he went. I think if a good block were available at the time he would have gladly spent the additional 2k or what ever it is to avoid crashing his car...
A stock block will stand 1500 HP. It just won't stand it for too terribly long.
bOb shingler
Well-Known Member
ops:I believe it was a rod that didn't want to play with the others and not the block failing.
so what inkjunky is saying is that the side of the block got ripped off and the rods remained in the assigned places? is that correct?
That'll buff right out.
oooooooooooo that's funny.we usedt to call them windos..and that block would have been welded..........Artie:newb::newb::burnout::burnout::coffee2::coffee2:
bOb shingler
Well-Known Member
I couldn't get it to buff out or see how I could have it welded as the "widow" took out a good portion of the bottom of the cylinder and opened the water jacket up.
moper
Well-Known Member
I've only seen Hemi and Ford Side oiler blocks welded with that kind of damage.
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