Single vs Dual Plane Intake?
Thread Starter
Instructor
Joined: May 2008
Posts: 154
Likes: 3
From: Indiana
Single vs Dual Plane Intake?
I have a 1968, 327 / 300 which I rebuilt two years ago and ended up with about 350 HP.
I currently have a Edelbrock single plane intake (5001) and someone told me I would gain low end if I switch to a dual plane intake. I don't race and never have pushed the RPM above 5700 so the HP gained at top end is not used.
If I switch to dual plane how much HP or torque gain would I see?
My setup is
327 .060 over
10.5:1 compression
Crane Z274 cam (274/280 duration and 473/486 lift)
World Products heads (2.02 - 1.60)
Shortie headders w/2.5 dual exhaust
I will not be changing the stock hood so the choice of intake is limited.
Thanks !
I currently have a Edelbrock single plane intake (5001) and someone told me I would gain low end if I switch to a dual plane intake. I don't race and never have pushed the RPM above 5700 so the HP gained at top end is not used.
If I switch to dual plane how much HP or torque gain would I see?
My setup is
327 .060 over
10.5:1 compression
Crane Z274 cam (274/280 duration and 473/486 lift)
World Products heads (2.02 - 1.60)
Shortie headders w/2.5 dual exhaust
I will not be changing the stock hood so the choice of intake is limited.
Thanks !
Safety Car
Joined: Aug 2000
Posts: 3,711
Likes: 43
From: San Antonio TX
Little to none. At least not enough to make it worth your while to change. The Torker II is not in the same league as say a Victor Jr when you think of single plenum intakes. The T2 has good low-rpm torque characteristics due to its small plenum and runners.
Drifting
Joined: Nov 2002
Posts: 1,951
Likes: 1
From: Shore NJ
Sounds like an Edelbrock Air Gap RPM would be a good fit, gives you up to 6500 rpms, you might have to switch to the LT1 style low rise air cleaner to make it fit with a little clearance, when checking for clearance use some tin foil or play dough so you don't damage anything...
Last edited by 73jst4fun; May 10, 2010 at 08:18 PM.
Advanced
Joined: Mar 2010
Posts: 50
Likes: 0
From: Glen Carbon il
hood clearance
I'm running the Edelbrock Performer RPM on my small block in my 68 But I am also running the Big Block hood and I have the low rise aircleaner.
I dont believe the Standard small block hood will allow the Hi-Rise intake manifold even with the Low rise aircleaner.
I dont believe the Standard small block hood will allow the Hi-Rise intake manifold even with the Low rise aircleaner.
