child an alberts rods

i have a set of there 150 series that are 6.385 long . i was wanting to put them into my dart big m block with a ohio billet crank to build a cheap 540.i run a 10-71 hi helix blower 50 over with dart 345 heads that are worked over some . i do mud drags and only run 200 ft in 2.5 secs . do you think they will work ?i was going to go 12.5 to 1 to start and hope to move to a 14-71 soon as money will let me. any ideas guys. also everyone i call tells me that ill have to have a custom piston to do what i want to do why is that with so many bbc out there running

 

IF your combination is 4.5 bore X 4.25 stroke , with tall deck block , you need
1.670 c.h. piston . J.E. make one piston with 1.645 C.H. a little shorter that make 12.0 to 1 with darts 345 heads normally around 120 cc ,P/N 111708 you can deck the block (around .020 ) to have to c.r. you want . I used this piston number in my 509 , 14-71 for many years and they do the job , but i run it 11.2 to 1 c.r. .
Claude

 

im running a 9.8 deck block . i went ahead and ordered a set of j-e pistons today at 12.5 . do you think that is to much?

 

Hi Fasttimesracing,

You should be just fine.
One of my spare engines is a 9.8" at 505C" with 6.385" Manley super 70 aluminum rods and 12.5:1 slugs and it does just fine.

 

I want to know if the billet crank from Ohio is a good buy? Is it good quality?
thanks
denis

 

about Billet Ohio crank shaft

I wonder if it is a nice quality the billet crank shaft from Ohio?
denis

 

i talked to them about their cranks and they highly reconmended that crank. ill know more after i get it and have it checked out. ill let you all know more then. i have run brooks rods before do you think the child and alberts will be ok?

 

child and albert rod

I prefer GRP and bill ancona has good price. bill@billancona.com>
denis

 

I doubt that JE piston your looking at is good enough for a blown alcohol motor. It's designed for a normally aspirated engine. Take a look at their nitrous series piston. Those are good for blown alcohol. If you don't believe me, call them, they'll tell you why.

 

that was the problem i ran into was the pistons. the nos pistons was to much comp and they didnt have any that was in the range i wanted . i called all the top piston companys and found out the same thing everywhere . so the ones we are having built are for blown alcohol with good pins. the last motor the rist pins failed and took alot of nice parts with them