good cam from summit
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Elder User
Joined: May 2007
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From: Sparks, NV
good cam from summit
im looking at camshafts at summit racing, since its down the street from my house and i want to get some information on wich camshaft will work best on a 300.
since this IS the 300 forums i hope some experts will take a look at these cams and tell me wich one would be a good candidate for the beathing capabilities of the engine
summitracing.com
i know the stock cam is a actually alright for the 300 STOCK, but im getting the 4bbl, efi manifolds, or headers.
Maybe some other mods in the future like a port/polish or maybe bigger valves.
since this IS the 300 forums i hope some experts will take a look at these cams and tell me wich one would be a good candidate for the beathing capabilities of the engine
summitracing.com
i know the stock cam is a actually alright for the 300 STOCK, but im getting the 4bbl, efi manifolds, or headers.
Maybe some other mods in the future like a port/polish or maybe bigger valves.
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Elder User
Joined: May 2007
Posts: 548
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From: Sparks, NV
it has come to my attention that the website did not transfer,
Camshafts - summitracing.com these
Camshaft and Lifter Kits - summitracing.com and these
carbureted hydraulic flat tappet
Camshafts - summitracing.com these
Camshaft and Lifter Kits - summitracing.com and these
carbureted hydraulic flat tappet
Posting Guru
Joined: Sep 2004
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Just get headers...if you get the efi manifolds, your almost half way to headers...and the long tube headers are better, period.
It depends on what you want.
If you want something for pulling power low end grunt
crane 248---> CRN-500511
If you want something with a little more top end and a nice racy/choppy idle and still be street friendly, 268's are usually considered a good all around street performance camshaft
comp 268---> CCA-66-248-4
If you want a smooth idle and a little more top end
crane 260---> CRN-503905
video of a 300 w/t comp268
http://www.youtube.com/watch?v=a5x0pH6CRPM
If you want an expert opinion, then call a major camshaft company and fill out the form for a custom camshaft. If you just call the tech lines, they gonna do what you or I or anyone else can do, look at the usable rpm range for each camshaft and ask you where you wanna make power.
It depends on what you want.
If you want something for pulling power low end grunt
crane 248---> CRN-500511
If you want something with a little more top end and a nice racy/choppy idle and still be street friendly, 268's are usually considered a good all around street performance camshaft
comp 268---> CCA-66-248-4
If you want a smooth idle and a little more top end
crane 260---> CRN-503905
video of a 300 w/t comp268
http://www.youtube.com/watch?v=a5x0pH6CRPM
If you want an expert opinion, then call a major camshaft company and fill out the form for a custom camshaft. If you just call the tech lines, they gonna do what you or I or anyone else can do, look at the usable rpm range for each camshaft and ask you where you wanna make power.
Postmaster
Joined: Dec 2006
Posts: 3,603
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From: Spokane, WA
Comp 260 or any make in the 260 Adv. range is a good choice. The tight 110 LCA on the Comp doesn't bother it. Most cams in that range have a 112 LCA. Mine idles smooth down to 500 rpm with no problems plugging around at low speeds.
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Id put my $$$ in the crane.
The comp 260 is probably fine but its also an older design, the difference would be likely negligible but Id imagine it would lean towards the crane and ultimately respond better with future upgrades to the head.
You dont need rhoads lifters.
The comp 260 is probably fine but its also an older design, the difference would be likely negligible but Id imagine it would lean towards the crane and ultimately respond better with future upgrades to the head.
You dont need rhoads lifters.
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Elder User
Joined: May 2007
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From: Sparks, NV
hmm maybe i should ask a different question; what would give me some more mileage? I would think the smaller the cam the better low end power/mileage.
the comp 252 looks like a good candidate
yes i plan on doing the 4bbl/header setup when the engine is out and done with a rebuild.
the comp 252 looks like a good candidate
yes i plan on doing the 4bbl/header setup when the engine is out and done with a rebuild.
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Postmaster
Joined: Dec 2006
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From: Spokane, WA
I've gotten 19.5 mpg with mine on one test tank that included about 80 city miles + about another 200 miles of straight fwy driving. My son-in-law loaded my truck with enough manure for the garden that about lifted the front wheels off the ground...he told me other than that, he didn't even know there was a load on it as far as the engine was concerned.
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Your right, a smaller cam should net better mpg, but it depends on the total combination, all the way down to tranny and axle gearing.
Isky has a mile-a-mor
crane 248 might be a good one too.
with that said, if you notice the video on the 268 cam, that guy claimed 17 and thats a pretty hot setup.
Some folks with stock carb engines claim well over 20 on avg, yet some cry about getting less than 15, just depends.
Isky has a mile-a-mor
crane 248 might be a good one too.
with that said, if you notice the video on the 268 cam, that guy claimed 17 and thats a pretty hot setup.
Some folks with stock carb engines claim well over 20 on avg, yet some cry about getting less than 15, just depends.
