Best Intake for 20 Degree Big Block Chevy

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, 2000

Ignored post by 1320racer posted

WHOMPWHOMP

DRR Pro

posted

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: 1275 | Location: USA | Registered: December 04, 2008

Ignored post by WHOMPWHOMP posted

1320racer

DRR Elite

posted

Maybe so but my point is there is no performance advantage.

Posts: 13522 | Location: NJ | Registered: August 20, 2000

Ignored post by 1320racer posted

DRR Pro

posted

This is a truck pulling engine. IMO this manifold is brutal.. Just doing what I was asked!

Posts: 1415 | Location: Hays Kansas | Registered: January 23, 2006

Ignored post by SpeierRacingHeads posted

DRR Pro

posted

Also, this is the first set I've had that has the Dura-bond Killer Bee seats.

Posts: 1415 | Location: Hays Kansas | Registered: January 23, 2006

Ignored post by SpeierRacingHeads posted

DRR Pro

posted

It weighs 28lbs.

Posts: 1415 | Location: Hays Kansas | Registered: January 23, 2006

Ignored post by SpeierRacingHeads posted

TOP38

DRR S/Pro

posted

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: 2163 | Location: Tewksbury, MA,USA | Registered: November 03, 2000

Ignored post by TOP38 posted

TOP38

DRR S/Pro

posted

quote:
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: 2163 | Location: Tewksbury, MA,USA | Registered: November 03, 2000

Ignored post by TOP38 posted

DRR Pro

posted

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: 1415 | Location: Hays Kansas | Registered: January 23, 2006

Ignored post by SpeierRacingHeads posted

TOP38

DRR S/Pro

posted

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: 2163 | Location: Tewksbury, MA,USA | Registered: November 03, 2000

Ignored post by TOP38 posted

DRR Pro

posted

quote:
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: 1415 | Location: Hays Kansas | Registered: January 23, 2006

Ignored post by SpeierRacingHeads posted