Dart 165cc runner, 1.94 or 2.02 valves? - CorvetteForum - Chevrolet Corvette Forum Discussion

C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette

Dart 165cc runner, 1.94 or 2.02 valves?


Old 08-11-2017, 08:25 PM
Junior Member
Thread Starter
miller3's Avatar
Member Since: Jun 2007
Posts: 48
Thanked 0 Times in 0 Posts
Default Dart 165cc runner, 1.94 or 2.02 valves?


After talking to my machinest for many days we are settling on the dart ie ss head, with 67cc Chambers (he will mill then down to 64 to bring compression up. But the small runners should be good for the 1800 stall, 3.55 rear gear and the basically a stock l82.

However my question is this, should we get the version with 1.94/1.5 valves or 2.02/1.6 valves? They are same price so that's not a factor. I plan to change to 1.6 rockers too to help it breath further but I don't want to ruin the bottom torque.

Let me know your thoughts
miller3 is offline  
Reply With Quote
Old 08-11-2017, 10:29 PM
CF Senior Member
REELAV8R's Avatar
Member Since: Apr 2011
Location: Hermosa
Posts: 3,903
Thanked 241 Times in 222 Posts

Get 1.6/2.02 valves. More air is better, they will not affect you bottom end power negatively.
Seeing as how theses are Darts, my experience is that darts run big in their dimensions.
Your 67 cc chambers may be more like 68 to 69 cc's.
Your 165 intake runners may run closer to 170 or a bit more as well.
REELAV8R is offline  
Reply With Quote
Old 08-12-2017, 01:14 PM
Pop Chevy
CF Senior Member
Pop Chevy's Avatar
Member Since: Apr 2001
Location: Sarver Pa
Posts: 2,992
Thanked 159 Times in 147 Posts

202's no doubt.
Pop Chevy is offline  
Reply With Quote
Old 08-13-2017, 10:27 AM
CF Senior Member
gjohnson's Avatar
Member Since: Mar 2008
Location: Denver CO
Posts: 1,003
Thanked 65 Times in 56 Posts

Bigger valve = more power
gjohnson is offline  
Reply With Quote
Old 08-13-2017, 10:53 AM
1976 Blue-Green L-82 4-sp
Support Corvetteforum!
resdoggie's Avatar
Member Since: Mar 2011
Location: Some days your the dog and some days your the hydrant.
Posts: 2,736
Thanked 273 Times in 253 Posts

Buy AFR's and install out of the box - no machining required. And yes, 2.02's like the L-82 has or 2.05's like the AFR's.
resdoggie is offline  
Reply With Quote
Old 08-13-2017, 09:39 PM
CF Senior Member
Member Since: Jul 2000
Location: columbia city in
Posts: 6,430
Thanked 140 Times in 131 Posts

http://www.hotrodders.com/forum/1-94...es-208262.html It depends what you are trying to do with car.

Last edited by terry82; 08-13-2017 at 09:40 PM.
terry82 is offline  
Reply With Quote

Thread Tools
Search this Thread
Quick Reply: Dart 165cc runner, 1.94 or 2.02 valves?

Sponsored Ads
Vendor Directory

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: