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Search found 747 matches

by 67RS502
Tue Nov 05, 2019 1:45 pm
Forum: Engine Tech
Topic: 440 SBF 826HP Hydraulic roller build!!
Replies: 9
Views: 1017

Re: 440 SBF 826HP Hydraulic roller build!!

This is a very impressive build, I'd love to hear more details.
by 67RS502
Thu Oct 17, 2019 2:34 pm
Forum: Engine Tech
Topic: Quieter 4 inch muffler
Replies: 18
Views: 994

Re: Quieter 4 inch muffler

Do you have tail pipes after the mufflers? If not, just stick some 3 1/2" Dynomax ultraflos on it, with a reducer before the mufflers. If its a street deal - its always better having packing type muffers, as they tend to knock down the low rpm noise more, as in normal street driving rpm range, oppos...
by 67RS502
Thu Oct 17, 2019 2:25 pm
Forum: Engine Tech
Topic: Help Me Decide Brodix Track 1 or IK200
Replies: 14
Views: 702

Re: Help Me Decide Brodix Track 1 or IK200

Well I thought your combo would be wanting a single plane, and the Holley being the best out of the box.
What happened to the mph when you made the swap? 1/8 mile and 1/4?
by 67RS502
Wed Oct 16, 2019 2:51 pm
Forum: Engine Tech
Topic: Help Me Decide Brodix Track 1 or IK200
Replies: 14
Views: 702

Re: Help Me Decide Brodix Track 1 or IK200

And a Holley single plane!
by 67RS502
Thu Oct 10, 2019 1:41 pm
Forum: Engine Tech
Topic: tall deck and intake spacer plates
Replies: 11
Views: 638

Re: tall deck and intake spacer plates

If youre going to be pulling the intake, you can use small screws on the spacers and mount the spacers to the head, so they are part of the heads, enabling you to pull the intake off.
by 67RS502
Tue Jul 30, 2019 3:38 pm
Forum: Engine Tech
Topic: 423 SBC prediction
Replies: 52
Views: 2771

Re: 423 SBC prediction

I don't really care for afr heads, as they tend to have some velocity issues. I assume they are around 2.25 csa which is on the small side for a 423, especially with the cam, rpm and comp you have, and the car isn't too heavy. I'm also not the only one who pointed this out. Heads need to be around 2...
by 67RS502
Tue Jul 30, 2019 1:33 pm
Forum: Engine Tech
Topic: 423 SBC prediction
Replies: 52
Views: 2771

Re: 423 SBC prediction

1. I think your heads are too small for the cubes, cam and comp. 2. Headers are too small. 1 7/8" is what you need. Pipemax will verify this. (my 420 picked up 1.5mph from 1 3/4" to 1 7/8") 3. Need more info on the exhaust, but flowmasters may not be the best choice especially if theyre not places i...
by 67RS502
Mon Jun 03, 2019 11:13 am
Forum: Engine Tech
Topic: Hydraulic roller lifters: Morel 5044 vs Isky/Johnson needless
Replies: 33
Views: 3170

Re: Hydraulic roller lifters: Morel 5044 vs Isky/Johnson needless

I have Jesel shafts on my 420sbc with Morels, they are noisy at cruise speeds, around 2000-2500rpm, can hear them clanking away if driving near a wall. My 490sbc has only been on the dyno, but has Johnson lifters with Jesel shafts, it was dead quiet at any rpm. So I don't see the shafts having an ef...
by 67RS502
Sat May 25, 2019 7:33 pm
Forum: Engine Tech
Topic: New SBC Manifold with tooling
Replies: 139
Views: 10361

Re: New SBC Manifold with tooling

Who recalls the distribution problems contestants encountered in the 2012 BLP Carb Shootout with single carbs on the tunnel ram type intake that had a long rectangular box plenum with parallel 90 deg. equally spaced runner entries, as opposed to the "X" layout of the Victor type intakes. The contes...
by 67RS502
Thu May 23, 2019 11:31 am
Forum: Engine Tech
Topic: New SBC Manifold with tooling
Replies: 139
Views: 10361

Re: New SBC Manifold with tooling

WeingartnerRacing wrote:
Thu May 23, 2019 10:11 am
I don’t like the line of sight on outside runners to carb.
That's what I was getting at..."line of sight" carb pad to outside runners.
by 67RS502
Wed May 22, 2019 11:05 pm
Forum: Engine Tech
Topic: New SBC Manifold with tooling
Replies: 139
Views: 10361

Re: New SBC Manifold with tooling

Why isn't the transition from the carb pad to the 1,2,7,8 runners a bit smoother with some "roof pitch" built into the manifold front to rear?
Could you add some material in front and behind the carb pad for this? not criticizing, just my initial thoughts.
by 67RS502
Wed May 22, 2019 11:01 pm
Forum: Engine Tech
Topic: New SBC Manifold with tooling
Replies: 139
Views: 10361

Re: New SBC Manifold with tooling

That's pretty awesome, a very extreme H manifold.
Will it work with existing 18* heads, or is it specific to your 18* head?
Wonder if I could make it work on my big cube SB, as its a RR head on a tall deck block, so the ports need to be located high.
Any pics of your 18* heads? inline wedge?
by 67RS502
Mon May 20, 2019 7:52 pm
Forum: Engine Tech
Topic: 490 SBC pumpgas 23* dyno results, need expert "power" advise
Replies: 176
Views: 8472

Re: 490 SBC pumpgas 23* dyno results, need expert "power" advise

rustbucket79 wrote:
Mon May 20, 2019 11:37 am
"Stocker" lobes look pretty square given the big duration and "blueprint" lift? :shock:
I would imagine so, but would they live on the street?
So either way were dealing with a lobe that needs to live on the street, with a HR or SR lifter.
by 67RS502
Sat May 18, 2019 7:59 pm
Forum: Engine Tech
Topic: 490 SBC pumpgas 23* dyno results, need expert "power" advise
Replies: 176
Views: 8472

Re: 490 SBC pumpgas 23* dyno results, need expert "power" advise

the NHRA Stocker Racer/Builder , especially Chrysler Racers , were doing everything possible to make the then Legal "only" Hyd Flat Lifters "act" like Solid Lifters 8) Some NHRA SBC were as little as 0.390"/0.410 Valve Lifts and some Street Hemis were 0.490"/0.480 Valve Lift Hyd Flat Lifters tricke...
by 67RS502
Sat May 18, 2019 7:55 pm
Forum: Engine Tech
Topic: 490 SBC pumpgas 23* dyno results, need expert "power" advise
Replies: 176
Views: 8472

Re: 490 SBC pumpgas 23* dyno results, need expert "power" advise

The hydro lifters flat or roller are prone to bleed down and thats where trouble starts. Especially rollers with the extra spring rates and rotating weight. I've had a fair bit issues with hydro. Going all solid. My local parts store will only bring hydro in if you order and pay first. To many clai...