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Best Intake for 20 Degree Big Block Chevy
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Why would any bracket racer think he needs a tunnel ram/2 carb manifold today no mind that manifold when there are 20 degree headed engines out there making north of 1300HP with a cast manifold and single dominator carb and at least one engine from one builder making north of 1400HP with a sheet metal manifold and single dominator carb?
 
Posts: 13522 | Location: NJ | Registered: August 20, 2000Reply With QuoteReport This Post
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quote:
Originally posted by 1320racer:
Why would any bracket racer think he needs a tunnel ram/2 carb manifold today no mind that manifold when there are 20 degree headed engines out there making north of 1300HP with a cast manifold and single dominator carb and at least one engine from one builder making north of 1400HP with a sheet metal manifold and single dominator carb?
Ive seen them be extremely extremely consistent
 
Posts: 1245 | Location: USA | Registered: December 04, 2008Reply With QuoteReport This Post
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Maybe so but my point is there is no performance advantage.
 
Posts: 13522 | Location: NJ | Registered: August 20, 2000Reply With QuoteReport This Post
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This is a truck pulling engine. IMO this manifold is brutal.. Just doing what I was asked! Wink
 
Posts: 1402 | Location: Hays Kansas | Registered: January 23, 2006Reply With QuoteReport This Post
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Also, this is the first set I've had that has the Dura-bond Killer Bee seats.

 
Posts: 1402 | Location: Hays Kansas | Registered: January 23, 2006Reply With QuoteReport This Post
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It weighs 28lbs.
 
Posts: 1402 | Location: Hays Kansas | Registered: January 23, 2006Reply With QuoteReport This Post
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quote:
Originally posted by SpeierRacingHeads:
Also, this is the first set I've had that has the Dura-bond Killer Bee seats.



If by that you mean Dart's copper impregnated iron seats, don't use a Titanium intake valve!
 
Posts: 2127 | Location: Tewksbury, MA,USA | Registered: November 03, 2000Reply With QuoteReport This Post



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Originally posted by SpeierRacingHeads:
It weighs 28lbs.
Assume that's after porting? Not as bad as I thought but still heavy, about 7 pounds more than a SV 632 intake.
 
Posts: 2127 | Location: Tewksbury, MA,USA | Registered: November 03, 2000Reply With QuoteReport This Post
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Yes after porting..

I have hundreds of titanium valves on the 15% copper seats. The GM LS7 head has them with a DW coated valve.
 
Posts: 1402 | Location: Hays Kansas | Registered: January 23, 2006Reply With QuoteReport This Post
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quote:
Originally posted by SpeierRacingHeads:
Yes after porting..

I have hundreds of titanium valves on the 15% copper seats. The GM LS7 head has them with a DW coated valve.


If you are responsible for this build, you need to reread what I told you! Unless Dart changed their seat material or you put different seats in the heads, you will have issues with the Tit. intake valves. Seats will be fine, valves with loose the battle! even with 50 degree seat angles..
 
Posts: 2127 | Location: Tewksbury, MA,USA | Registered: November 03, 2000Reply With QuoteReport This Post
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Originally posted by TOP38:
quote:
Originally posted by SpeierRacingHeads:
Yes after porting..

I have hundreds of titanium valves on the 15% copper seats. The GM LS7 head has them with a DW coated valve.


If you are responsible for this build, you need to reread what I told you! Unless Dart changed their seat material or you put different seats in the heads, you will have issues with the Tit. intake valves. Seats will be fine, valves with loose the battle! even with 50 degree seat angles..


Dart is using CHE seats. I've been using the same seats for years. A CrN coated valve will live. I have lots of them out there.
 
Posts: 1402 | Location: Hays Kansas | Registered: January 23, 2006Reply With QuoteReport This Post
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