Dart blocks for ss?
 

so are they legal for SS now? i can get a 4" bore unit reasonably priced and would like some "classracer" opinions on going in that direction please...

Re: Dart blocks for ss?
 

there's a list on the nhra website. i believe the only choice is the dart little m sportsman block.

Re: Dart blocks for ss?
 

is there any advantages/disadvantages in using a dart over a bowtie block? i want too spend my once in a lifetime/hard earned cash investment properly. thankyou...

Re: Dart blocks for ss?
 

DART Quality vs GM Junk

Re: Dart blocks for ss?
 

I don't know about u guys, but I have yet to see a junk bowtie block, over priced,maybe? Junk, I think not.

Re: Dart blocks for ss?
 

When you put them side by side you will be able to tell the difference in quality.
Been there done that... and it was not even close on a choice.
Dart is much superior in almost every way.
When I bought mine the GM block was actually higher in price by just a little, but price was not the deciding factor for me at the time.
My 2 Cents

Re: Dart blocks for ss?
 

Unless they've changed, Dart was using the same foundry and the same material as GM. GM has gone to a very high quality CNC process. They (BowTie blocks) were never junk, but Dart surpassed them in quality at least for a while.

Make sure you compare apples to apples when you compare blocks, don't compare the cheapest two bolt main cast cap BowTie block to a Dart Little M, that's not a reasonable comparison. At one time, GM had a few BowTie blocks that were specifically intended to be cheap and small upgrades from production blocks. They were really meant to pass tech as a factory block in low budget classes so that racers who had to run a GM block could have an alternative to used up worn out salvage yard rejects. They were not meant to be a real "aftermarket" block for high end racing.

Re: Dart blocks for ss?
 

what block is legal for the SS SBF?

Re: Dart blocks for ss?
 

According to the list, there are none. The only accepted Ford aftermarket blocks on the list (page 89-90) are for the FE.

Re: Dart blocks for ss?
 

yea i saw that last nite from my droid phone, so i wasnt sure if i was looking at it right, but i thought i heard the Boss block was legal:confused:

Re: Dart blocks for ss?
 

I might be mistaken, but I think the Dart Little M is heavier than the bowtie when comparing apples to apples.

Re: Dart blocks for ss?
 

advertised little M SBC @ 4" bore, bare block is 205lbs. bowtie?

Re: Dart blocks for ss?
 

dont know about the weight they are both heavy, but the quality of current bowtie
blocks is outstanding, cnc machined, completely deburred and very accurate from
the get go. The shp block from dart is a good block also, not quite the same as a little
m but way lighter and cheaper and still a good piece, not on the list but i spoke to a guy
at dart and he said the had talked to nhra about approval? anyone hear about this?

Re: Dart blocks for ss?
 

181 bowtie block weighs 187 pounds per GM----comp

Re: Dart blocks for ss?
 

I'd use whichever block can be decked the most.

Re: Dart blocks for ss?
 

The Little-M and the 2503 Bowtie block are both appox. the same weight we have worked on them both. We have probed both out for locations such as cylinder locations, deck heights, cam tunnel placement, lifter bore placement and both seem to be very peices.

The Dart SHP blocks are about 600.00 cheaper then the Little-M Sportsman and about 8 or 900 cheaper then the 2503 Bowtie block.

The Dart SHP blocks weighs around 180 pounds on their 4.000 bore block.

We have machined about 125 plus of those blocks since they came out and so for none have had any issues to date. Sure beats sealing with the old 400 OEM blocks!!!

Re: Dart blocks for ss?
 

The most we have decked of the 2503 Bowtie block was .250 it was far a sprint car build and the upper water pump bolts holes the threads were right there.