Power Guess...
Post Fiend
Joined: Jul 2006
Posts: 6,948
Likes: 44
You dont have enough, keyways to adjust the cam timing. In fact, the stock gear sets only have provisions for one setting, and this is the factory retarded setting.
Far too much for an offset keyway, and a gear set is cheap.
Fact is, the timing will help, but a cam change can go a long way. Its about half way apart anyway.
Far too much for an offset keyway, and a gear set is cheap.
Fact is, the timing will help, but a cam change can go a long way. Its about half way apart anyway.
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Elder User
Joined: Apr 2010
Posts: 518
Likes: 0
From: Mount pleasant, michigan
Oh i see its got a keyway, i thought they were splined so you could change it. Ok thats better and yeah i planned on getting a mild cam for it as well. So what do you think im making with the new straight up timing, cam, carb, intake, headers, straight pipes, and if i get a new MSD blaster 3 coil?
Elder User
Joined: Aug 2004
Posts: 796
Likes: 1
Don't waste any money on a coil trying to make more horsepower. It's a nice part of a complete ignition system upgrade if you plan on racing. I like MSD, I run an MSD Coil, MSD Digital 6, and MSD Wires on my Corvette, but it's nearly 11:1 compression and I have been known to race it on occasion.
For your truck, if the stock coil is working, your money would be way better spent on other things.
For your truck, if the stock coil is working, your money would be way better spent on other things.
Elder User
Joined: Aug 2004
Posts: 796
Likes: 1
Honestly there are way too many variables to venture a reasonable guess. You can move the horsepower and torque numbers all over the place based on your cam choice, intake choice, carb choice, header primary size and length. Couple this with the fact that not too many people dyno their trucks, and you're really just spitting in the wind with any guesses.
Now if you wanted to talk about the Chevrolet LT1 engine, I could tell you what to reasonably expect out of heads, cams, headers, etc. But this is a totally different beast. There are a LOT more options and thus a lot more variables.
Now if you wanted to talk about the Chevrolet LT1 engine, I could tell you what to reasonably expect out of heads, cams, headers, etc. But this is a totally different beast. There are a LOT more options and thus a lot more variables.
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Elder User
Joined: Aug 2004
Posts: 796
Likes: 1
Do yourself a favor and dyno it at least once BEFORE you do any of your mods. If you don't, you'll always be wondering how much good you really did.
I paid $75 to dyno my car when it was stock, but it's about the best money I ever spent because I know exactly how much HP I gained at every step along the way. Of course it was better when access to the dyno was free, ah the good ole days.
If you can do it for free, there is no reason not to.
I paid $75 to dyno my car when it was stock, but it's about the best money I ever spent because I know exactly how much HP I gained at every step along the way. Of course it was better when access to the dyno was free, ah the good ole days.
If you can do it for free, there is no reason not to.
Zombie Survivalist
Joined: Feb 2009
Posts: 14,809
Likes: 3
From: Rock Springs, WY, USA
for cams, go to crower. they have the best selection, and they tell you the powerband for each cam.
heres a link:
http://www.crower.com/misc/m_cat.shtml
youll have to scroll down a ways to find the options for the 351C/351M/400, but they have a lot of options. you can get the gearset, new rockers and springs, and whatever from em too. throw some hooker long-tube headers at it too.
let me know what youre thinkin for everything that you plan on usin, and ill get a ball park figure, plus or minus 100 HP.
heres a link:
http://www.crower.com/misc/m_cat.shtml
youll have to scroll down a ways to find the options for the 351C/351M/400, but they have a lot of options. you can get the gearset, new rockers and springs, and whatever from em too. throw some hooker long-tube headers at it too.
let me know what youre thinkin for everything that you plan on usin, and ill get a ball park figure, plus or minus 100 HP.
Posting Guru
Joined: Jan 2005
Posts: 1,299
Likes: 2
From: The Vieux Ford, Kansas
You will never make a decent amount of power with one of these engine with out getting the compression up that is what really kills these engines. The 335 series engines in trucks had 8.0:1 and lower. If it were me I would spend the money on a short block rebuild with some decent pistons to bump the compression (TMI is the only source I know of). The four barrel and the strait up cam timing will help it get over the pathetic stock rating but if you ever want to get any real power you have to correct the compression problem. No sense in building on a bad foundation.
-John
-John
Tuned
Joined: Jul 2009
Posts: 432
Likes: 0
From: Lowell, MI
Sit back and soak up all the info these guys have...I thought i knew alot about my truck, some of these guys forgot more than i ever knew.
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