Wow what a difference a cam makes!!!
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Senior User
Joined: Jan 2003
Posts: 148
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From: Longmont, CO USA
Wow what a difference a cam makes!!!
I decided I needed to go through my 400 and re-seal it up as it was starting to leak some oil. I also figured it would be a good time to change the timing set and then that led to a cam change. LOL That truck would never even spin the tires going around a corner and now you just goose it and its turning them going straight! So it currently has a Edelbrock performer 400 intake with long tube headers and this EnginePro cam. I got the cam from my local machine shop for about $130 with lifters, couldn't pass it up.
Anyway, my point is I have always read on here that a good intake, cam, and headers will wake one of these up. I never thought it would have helped this much. It felt like going from a 6 cylinder to an 8 cylinder. LOL
Here's the cam specs for the cam. I was on a tight budget for this engine.
Adv. dur. - 260 intake 270 exhaust
dur. @ .050 - 194 intake 204 exhaust
valve lift - .458 intake .484 exhaust
lobe sep. - 105 intake 115 exhaust
rpm range 1000-4000
Anyway, my point is I have always read on here that a good intake, cam, and headers will wake one of these up. I never thought it would have helped this much. It felt like going from a 6 cylinder to an 8 cylinder. LOL
Here's the cam specs for the cam. I was on a tight budget for this engine.
Adv. dur. - 260 intake 270 exhaust
dur. @ .050 - 194 intake 204 exhaust
valve lift - .458 intake .484 exhaust
lobe sep. - 105 intake 115 exhaust
rpm range 1000-4000
Posting Guru
Joined: Aug 2005
Posts: 1,473
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From: Coal Country, ND
I know the feeling I took a stock 400, and added a 265 DEH cam and lifters, straight up timing set, Eddy intake, Holley 4 barrel, HEI ignition, and headers pretty much all in one shot.
Wow, it was like someone stuck a new engine in while I wasn't looking!
NICE WORK BTW!!!!!!!!!!!!!!!!!!!!
Wow, it was like someone stuck a new engine in while I wasn't looking!
NICE WORK BTW!!!!!!!!!!!!!!!!!!!!
Cargo Master
Joined: Dec 2004
Posts: 2,232
Likes: 3
From: NE Texas
Yes, I'm sure it does run out of steam pretty seriously at 4000 RPM, but it is just silly to try to spin up a 4" stroke engine much past that.
Use a short cam and the other goodies on a 400 and you won't need to spin it up.
Use a short cam and the other goodies on a 400 and you won't need to spin it up.
Posting Guru
Joined: Jul 2007
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hmmm i dont find it ridiculous, stock 400s reved to 4k without any hesitation, almost every good compression built here is making their max power at 5k, which is a great rpm range for a 4" stroke mildly built engine.... I rev my 400 to 5500 and my peak power is 400hp@5000 with a nice xtreme energy cam and 10:1 Cr keeping stomping torque at 2000.... so its possible even with his cam advertisment that his peak hp could be at 4500 due to headers, intake carb and stuff..
Senior User
Joined: Apr 2007
Posts: 120
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yeah mines go's to 5500 with a 2 bbl, and i'm pretty sure when i get my holley 750 dp, and my msd box wired up, it will go even higher
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Senior User
Joined: Jan 2003
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From: Longmont, CO USA
I haven't put a tach in the truck yet as that is another thing on the "to do list" but I don't feel it has any shortage in power now and am happy with it. Actually runs better then I was expecting.
Hollenjoe- The engine is all stock other then whats listed. The block is a 72 with D5 heads..It was a reman engine. So its a gamble if it is the early 400 compression ratio or not. Last time I ran a compression check on it had 145-150psi on all 8 cylinders about a year ago. I am happy with those numbers you provided.
I have a 77 F250 crew cab that has the 351m in it, might start looking for a 400 now and do a few more mods and put a bigger cam in it and see how that goes.
Hollenjoe- The engine is all stock other then whats listed. The block is a 72 with D5 heads..It was a reman engine. So its a gamble if it is the early 400 compression ratio or not. Last time I ran a compression check on it had 145-150psi on all 8 cylinders about a year ago. I am happy with those numbers you provided.
I have a 77 F250 crew cab that has the 351m in it, might start looking for a 400 now and do a few more mods and put a bigger cam in it and see how that goes.
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Elder User
Joined: Jan 2004
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From: Colorado
Hey Burg, send me a message on RMFTC.com, i have a standard bore 400 block, and a standard 400 crank, and 2 sets of connecting rods, aswell as a set of builder heads, i think they are the pre 75 heads. I was going to build another 400 and put it in my new project, but decided on a different engine for it. I also have a few old tachs, one is my goodluck charm and not for sale, and the other is a digital display tach.
Posting Guru
Joined: Aug 2005
Posts: 1,473
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From: Coal Country, ND
50k volts, or so they say.
I had an MSD Blaster coil when I was running the Duraspark and it pulls higher r's with the HEI.
I like it, except for explaining "I have Chevy parts on my Ford" to some people
.
I had an MSD Blaster coil when I was running the Duraspark and it pulls higher r's with the HEI.
I like it, except for explaining "I have Chevy parts on my Ford" to some people
.
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