sbc block

[Lynnmsp]

Looking to purchase a new or used block.Any comments on Dart Little M,SHP or World Products or Bow Tie?Need to bore to 4.155,3.750 stroke.Will have appox 650 to 750HP at crank.Mains need to be 350 crank size.Your comments please.

[Darrin Christen]

I run a Dart Little M with 350 mains 4.030 bore. I think the Bowtie block is a little lighter though, Thinner cylinder walls. I went with the Little M because I already had the 355" rotating assembly but I wanted to be able to build a larger engine future. The Little M would allow that option because of the thick cylinder walls. Dart recomends you can bore it to 4.185" and still have .200" thick cylinder walls. Good Luck!

[Bob Verwold]

I run the Motown (World) block with the 350 mains with the 4.125 bore w/splayed mains. It's now bored to 4.155 with at least one more bore left in it.................Never had a problem with it. Also love the blind tapped head bolt holes it's easier to run head studs. I would take a look at the motor that's for sale in the parts section, you won't build it for 4500.

[Eddie Arnold Jr.]

Per my post on your Rod question ,,, I have run SB Chevys for over 20 years ( yea I'm Old

I have run all the different blocks ,,, The one I perfer , and as a matter of fact I still have one new , never been used ( along with a lot of other SB stuff ) is a 2 bolt Chevy Bow Tie ( 2 bolt was thicker in the main area ) that has been converted to 4 bolt steel caps , boered to 4.130 ( I never take them all the way out to allow for future re-builds and boering ) decked , cleared for Groden Alumin Bilet 6"rods with a 3.750 stroke and 350 mains ,,, it was for a one piece seal crank but converted over for a 2 piece seal , so it can use any style crank. --- I bought it over 10 years ago when Chey used real metal --- My plans wer to build another SB for back up but the 421 never broke other than spining a bearing after 400 passes --and now I'm a Big Block racer ( Sorry Jason ) 9.90 @ 168 ---- In case you are interested ,, I'll probally sell this spring in parts or I might even put together and sell complete ,,,, Block above , 3.750 BRC used crank , New 6 " Groden Alumin rods , Wiesco Pistons , Comp Cam , lifters new Jeff Jackson aluim oil pan , external pump , new ATI Dampner , new rings etc...every thing need to build a real killer SBC and These are my pride and Joy Small Block Heads , a set of 18 Degree Intake , 23 Degree exhaust heads with Jessel rocker arms ,, these were the heads/top end that Tom Martino set the C/A record at 7.77 prior to running Pro Stock , with Tom's sheet Metal intake that he used !!

Colorful Used to be SB racer !!

[B CHILLIK]

eddie ...if you were to sell the short block how much ?

[Eddie Arnold Jr.]

I usally attempt to get 50 cents on the $ ,,, Haven't given it much thought ,,, but like most folks , it wouldn't take much for me to sell specificly if it is to another racer who could really use the stuff and it helps him or her out Win / Win ---- I'll give it some thought and post a price list ,,,,, one caution is all parts are new except for Crank ( was repaired from spun bearing , checked , x ray etc ) heads and sheetmetal manifold .
(Heads were gone over and prepared , new springs etc by Watson Ruppel )

The pistons are new Wiesco Flat tops ( final compression was to be around 14.8 :1 ) but were made for heads with Valve releifs to comply with heads (23 degree exhaust and 18 degree Intake ) --- So I couldn't sell the short block with Pistons , but Pan , Block , Balancer , Rods , Cam , CSR water pump , crak trigger (distributer and pick up ) etc is all new still in boxes never used ,,,, I hadn't given it much thought because I was thinking of putting it together and seeing how fast the combination would be ( Martino had a 32x something and I was building a 401 !! ) --- Thanks for asking ,,, I'll follow up !

Colorful Racer