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Author Topic:   dart little m
Tim Weiss
Member
posted July 30, 2004 01:44 PM
Thinking about buying one for next year how much machine work does it need to be race ready? Is the 400 mains better than 350? looking for opinions and experiences This will be for ump mod or possible steel block late model 600+hp


sdhnc29
Member
posted July 30, 2004 03:25 PM
Good choice Tim! You will need to bore and hone to your finished size, deck the block, and hone the lifter bores. Other than that......you should be good to go. I would of course double check the main bore's. I have had a couple come through that were undersize by a few 10th's. The 350 and 400 main block's are equal in my opinion. We have a lot of each running, and no problems. In fact, I have not seen even 1 main web failure from a Little-M.

The only negative issue is the weight of the block. But of course this is part of why it is so strong.

Steve

------------------
Hendren Racing Engines
Rutherfordton , NC
(828)286-0780
Check out my other business at www.solemnvow.com A special thanks to jammin for the awesome job he has done for me on this site!!


Tim Weiss
Member
posted July 30, 2004 05:15 PM
Thanks Steve how much weight difference than a stock 400?


sdhnc29
Member
posted July 30, 2004 06:22 PM
A finished big bore Little-M weigh's about 195lbs. I have not weighed a stock 400 block, but I've heard they weigh about 180, give or take a few pounds.

Steve

------------------
Hendren Racing Engines
Rutherfordton , NC
(828)286-0780
Check out my other business at www.solemnvow.com A special thanks to jammin for the awesome job he has done for me on this site!!


chomme
Member
posted July 31, 2004 11:08 AM
What about the CNC bowtie blocks how do they compare, quality and weight? etc.



2nd2none
Member
posted August 02, 2004 11:22 AM
I do believe Dart makes a lighter version of the Little M for $300-$400 more.


chomme
Member
posted August 02, 2004 12:39 PM
On my Little M block we had to clearence it for the distributor gear just below the cam journal.


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