Best heads for Magnum 360
What he said, Damn skippy! ^^^^^^^^^
I'm looking at making a head change, but am not able to find much in the way of magnum style performance heads. Is cast iron or aluminum better? The engine is stock with the exception of an aluminum intake, and 340 manifolds.
Your sig below states:
stock 5.9 magnum, crosswind air gap intake manifold, 727 torqueflite, 340 hi-po manifolds, 625 carter AFB, 8 3/4 3:55 gears
Add a cam. This is what I purchased. The expected date is a mistake. I ordered it a few days ago and I was notified of it being shipped yesterday.
$165
Howards Cams 711451-08 Howards Cams Hydraulic Flat Tappet Camshafts | Summit Racing
Hyd lifters from Howard’s
$129
DODGE Howards Cams 91711 Howards Cams Performance Hydraulic Lifters | Summit Racing
Cam as you wish…. Keep the duration @.050 at 218 or less for a stock converter and you’ll be good to go no issues.
If your cam is larger than a 212@050, IMO, you’ll find a nice power increase with headers.
Doug’s or TTI’s are best. The typical street header is OK and if you use the cheaper header, I seriously suggest using the “Summit Brand” header with their 3/8 flange. They, for me, have fit the best. Also, there exhaust kit which requires minimal trimming.
$260
Summit Racing SUM-G9040 Summit Racing™ Headers | Summit Racing
$421
1972 PLYMOUTH DUSTER Summit Racing SUM-680144 Summit Racing™ Header-Back Dual Exhaust Systems | Summit Racing
You know have $25 left over for intake and exhaust gaskets.
You still need pushrods. The Hyd. Cam and lifters are cheaper than a roller cam outright and the pushrods are a variable price but should not be overly expensive, just make sure there oil through.
Comp roller cams are $489 & roller cams from Howard’s are $357 to $419 just for the cam alone. Though you’ll probably need nothing else since the Hyd roller and pushrod will be re used.
A little more expensive than $249 for the Hyd cam and lifter package. A $170 cheaper choice. A performance differences that the seat of the pants won’t notice if at all much. Your choice on where and how to go. But at $1,000 bucks to spend, I got pretty close!
The Summit Racing mufflers are good for an easy 440hp in which you will not be close to.
Do remember if you go with the cam I linked above or bigger, you’re in for a converter. KA-Ching! For surely spend the money on a good one or settle into a lesser effective converter off the shelf. But your going to need that stall.