[Chad Speier]

I have all these manifolds here at one time. I took the time to photo them next to each other. I thought some would benefit..

 

[the FLYER]

Chad, will you be testing them all in as-cast then again after you rework them?

which, in order, flow best etc as-cast, then after reworked?


thanks

 

[Chad Speier]

Chad, will you be testing them all in as-cast then again after you rework them?

which, in order, flow best etc as-cast, then after reworked?


thanks

No, I wont be doing any as-cast testing. The ONLY unported manifold I like is the Holley 300-25. The rest need work!

We need to pick a combo before I could list them in ported shape..

 

[levisnteeshirt]

might try a Victor E too ,, ya think ?? 2814 Edelbrock ?

 

[sbc1320]

My kind of man-jewelry. :yes::yes::yes:

 

[mud.man.rj]

They all look so simular, like they were all made at the same place, just wonder how close they really are top and bottom end. Hmmm.

 

[The Big Al]

No, I wont be doing any as-cast testing. The ONLY unported manifold I like is the Holley 300-25. The rest need work!

We need to pick a combo before I could list them in ported shape..

Agree 1000000%

Al

Great post.

 

[Chad Speier]

Sizes. Measure in middle of opening and lengths in middle of runner.

Holley 300-110
inner runner: 2.94 CSA, 4.625 long
outer runner: 3.36 CSA, 5.50 long

Edelbrock 2925
inner runner: 2.89 CSA, 5.58 long
outer runner: 2.85 CSA, 6.56 long

Edelbrock 2970
inner runner: 3.26 CSA, 5.525 long
outer runner: 3.29 CSA, 6.54 long

Edelbrock 2892
inner runner: 3.58 CSA, 5.42 long
outer runner: 3.66 CSA, 6.30 long

Hurricane (Bowtie)
inner runner: 3.34 CSA, 5.54 long
outer runner: 3.70 CSA, 6.42 long

Holley 300-25
inner runner: 3.34 CSA, 4.38 long
outer runner: 3.45 CSA, 5.025 long

 

[mud.man.rj]

Sizes. Measure in middle of opening and lengths in middle of runner.

Holley 300-110
inner runner: 2.94 CSA, 4.625 long
outer runner: 3.36 CSA, 5.50 long

Edelbrock 2925
inner runner: 2.89 CSA, 5.58 long
outer runner: 2.85 CSA, 6.56 long

Edelbrock 2970
inner runner: 3.26 CSA, 5.525 long
outer runner: 3.29 CSA, 6.54 long

Edelbrock 2892
inner runner: 3.58 CSA, 5.42 long
outer runner: 3.66 CSA, 6.30 long

Hurricane (Bowtie)
inner runner: 3.34 CSA, 5.54 long
outer runner: 3.70 CSA, 6.42 long

Holley 300-25
inner runner: 3.34 CSA, 4.38 long
outer runner: 3.45 CSA, 5.025 long

The first Holley and Edelbrock are comparable to each other but not the others and the other 4 are closer to each other..but as we know runner length alone doesn't make an intake, but helps.