340 intake suggestions
#892439
12/31/10 01:33 PM
12/31/10 01:33 PM
|
Joined: Jan 2008
Posts: 1,300 Washington
19cuda73
OP
pro stock
|
OP
pro stock
Joined: Jan 2008
Posts: 1,300
Washington
|
I'm rebuilding a 340 and I want it to look stock when complete. It has a mild cam 202 heads and 10 to 1 compression. I have a stock intake but would like any suggestions for another dual plane mopar intake that works with the thermoquad 6318. Or should I just keep the original one on it? Thanks for the help
1966 Charger 383 4 speed (Black with Red interior) 1973 Cuda 340 4 speed (Lemontwist) 1972 Corvette
|
|
|
Re: 340 intake suggestions
[Re: ademon]
#892446
01/01/11 02:27 PM
01/01/11 02:27 PM
|
Joined: Jan 2003
Posts: 3,623 Millinocket, Maine
JonC
master
|
master
Joined: Jan 2003
Posts: 3,623
Millinocket, Maine
|
Quote:
You may have to run a spacer with the air gap, i modified a 71 340 intake haven't run it yet, but i did mill the divider and slightly enlarge the plenum area, Hit all the turns trying to radius them to a nice rounded turn, then gasket matched the ports as far in as i could get with a 6" bit, also got rid of some of the lumps on the roof of the ports. Then made a larger oil splash shield for the bottom of the intake. Have about 20 hours in it and you would be surprised how much metal was removed.
What advantage to milling the divider???
|
|
|
Re: 340 intake suggestions
[Re: JonC]
#892447
01/01/11 08:09 PM
01/01/11 08:09 PM
|
Joined: Jul 2003
Posts: 6,167 Maryland
GO_Fish
master
|
master
Joined: Jul 2003
Posts: 6,167
Maryland
|
removing most of the divider was a common modification on LD340's and advised by Direct Connection back in the day. I think later LD340's came from the factory with the divider removed. It helps performance by making the intake a little more hybrid, that is giving the dual plane manifold some single plane characteristics. Nice modification work done on the iron intake pictured! I've read you don't want to polish the intake ports, you want them a bit rough to help keep the fuel vapor in suspension/ atomized. Smoothing them out is fine.
Scott B.
"I'm a self-made man... I started with nothing, and I still have most of it!"
68 360 rusty B'cuda 'vert (GO Fish)13.59@ 98.72 mph
69 340 GTS stock 14.18@ 95.60 mph
01 5.9L Ram 1500 Quad Cab 4x4
01 3.5L 300M 16.23@ 86.97 mph
|
|
|
Re: 340 intake suggestions
[Re: ScottSmith_Harms]
#892448
01/03/11 02:19 AM
01/03/11 02:19 AM
|
Joined: Jan 2008
Posts: 1,300 Washington
19cuda73
OP
pro stock
|
OP
pro stock
Joined: Jan 2008
Posts: 1,300
Washington
|
Thanks for the info Will the thermoquad fit on the Air Gap?
1966 Charger 383 4 speed (Black with Red interior) 1973 Cuda 340 4 speed (Lemontwist) 1972 Corvette
|
|
|
|
|