1968 dart for ss

[m.megaw]

Im working on a dart for superstock with a stick.What would be the best motor combo 340 383 440? I dont need to set a record at this point in time however must be respectable.

monte

[GTX JOHN]

All three have very competitive HP rating and are Excellent!
It comes down to your personal preference.

[Philip Saran]

Originally Posted by GTX JOHN

All three have very competitive HP rating and are Excellent!
It comes down to your personal preference.

And your bank account. A competitive SS 383 should run about $35,000.

[GTX JOHN]

I think all the above combos cost about that...... the 340 might be slightly
cheaper. The protrans and the heads are a bit less from my experience
for the small block but not a ton cheaper.

[Jared Jordan]

I'm a big fan of the Super Stock 383 combo. It's got a good factor (300 hp) and enough carb for the cubes. Don Little, Steve Wann, Mike Cotten, and others have run very well with it.

The 440 is fast as well. Not very many 340's out there. I'm sure there's a good reason for that. Head CC's maybe?

[GTX JOHN]

Jared: The 340 around 280 in SS last time I looked........It is 293 in stock
and still Fast.

The carb is same size Carter on 340 and 383 as I recall.

NHRA changed spec on X heads a while back to 167 after a bunch
of fighting which is a decent number for small block mopar heads.

The main reason I run the stock legal engine in Super Stock rather than
a ever build a real SS engine is that is very difficult to find a cylinder head
builder for SS out west. My friends that do my stock stuff are not very
interested. I left a set at a well know Head Place and he left them on the
Shelf for two years.

When I run the 340 Stocker in SS......it run slightly under to SS index and
and I think it would sure pick up in SS trim.

I agree that all three are good combinations!

Jared: I hope you Legendary Grandfather is doing well
He has always been a Hero of mine since the 1960s!!

[magnumv8]

What you need to keep in mind now is that the Edelbrock heads are only legal on the 318, 383 and 440 in the Dart for '68 and '69....the 340 can only use the "iron" head replacement.....the 318 taken out to max specs is around 330 cubes and looks as good or better than the 340 package w/Edelbrock heads in SS

D L Rambo......

[Ed Wright]

I would sure think about a 383". That thing of Mike Cotten's is very fast.

[Paul Precht]

Originally Posted by magnumv8

What you need to keep in mind now is that the Edelbrock heads are only legal on the 318, 383 and 440 in the Dart for '68 and '69....the 340 can only use the "iron" head replacement.....the 318 taken out to max specs is around 330 cubes and looks as good or better than the 340 package w/Edelbrock heads in SS

D L Rambo......

A .070 over 318 is about 323 ci and the 2 brl carb flows about 300 cfm, not a good choice IMO. The 383 is the best choice, the BB head is far superior and much easier to achieve the flow needed to be competitive , much of the money spent is on parts and labor needed to make the engine live at high RPM.

[Todd Boyer]

Shawn Blair runs a 383 in his '68 Dart SS/JA.