Holley ****** EFI fabricated intake manifold (837031)

ttthiel · Aug 12, 2020

Does anyone have this? How does it perform? Was looking into a 6.4 manifold for my 5.7 and stubbed across this.

https://www.holley.com/products/intakes/sheet_metal_fabricated/efi_intakes/parts/837251

Wild one · Aug 12, 2020

ttthiel said:
Does anyone have this? How does it perform? Was looking into a 6.4 manifold for my 5.7 and stubbed across this.

https://www.holley.com/products/intakes/sheet_metal_fabricated/efi_intakes/parts/837251

Stay away from it unless you're planning on lots of boost on a big cube build ie: 426+ cubic inch engine.You're better off with the 6.4 truck manifold on a daily driver street truck that's still 5.7 /345 cubes.

ajs3 · Aug 12, 2020

That's purty

Sent from my XT1650 using Tapatalk

Tim Garceau · Aug 12, 2020

Good for direct port spraying and car shows.

ttthiel · Aug 13, 2020

Wild one said:
Stay away from it unless you're planning on lots of boost on a big cube build ie: 426+ cubic inch engine.You're better off with the 6.4 truck manifold on a daily driver street truck that's still 5.7 /345 cubes.

This is for my prerunner which one day I will boost. I was trying to compare it to the 6.4

RedSRT4Me · Aug 13, 2020

ttthiel said:
Does anyone have this? How does it perform? Was looking into a 6.4 manifold for my 5.7 and stubbed across this.

https://www.holley.com/products/intakes/sheet_metal_fabricated/efi_intakes/parts/837251

What gets me is the power band range Holley claims is 6400 rpm. That doesn't scream big cube engine by today's standard. With 7" runners its trying to maintain some TQ and push the rpm past redline another 500 rpms.

This manifold was made for the single runner valve hemi's or SRV. You'll be one of the first to report their experience if you purchase it.

Wild one · Aug 13, 2020

ttthiel said:
This is for my prerunner which one day I will boost. I was trying to compare it to the 6.4

Go onto the facebook pages and talk to the guys who've actually tried one out.It doesn't get great reviews on anything that has to pull from idle to say 6,000 rpm naturally aspirated,even the guys feeding it a 200 shot of nitrous are saying it's not a good manifold off the spray.Buy one and try it out,then report back to us on how you like,me i'd stick with the 6.4 manifold or at the very least the 6.1 manifold if you're adding 10+ lbs boost to a 5.7

Holley ****** EFI fabricated intake manifold (837031)

ttthiel

Senior Member

Wild one

Senior Member

ajs3

Member

Tim Garceau

Banned

ttthiel

Senior Member

RedSRT4Me

Senior Member

Wild one

Senior Member

Similar threads

Latest posts

Members online

Forum statistics

Share this page