I have a 97 crew cab with a 460 bone stock engine. only upgrade at this point is a K&N air filter with a trimmed up air inlet and a decent exhaust with a gutted cat. I use it for a daily driver but also pull in a stock truck pulling class. I need some quick inexspensive power upgrades just to get the tires turning. 33x12.50x16.5 mud tires on old style white spoke wheels. Any suggestions would be much appreciated. thanks.

 

thanks, and that 96 f350 looks just like my f250 truck, but mine is a short bed.

 

http://i128.photobucket.com/albums/p...7fordfront.jpg

I thought I would include a quick picture.

 

put a timing chain from a 1970 460 in it. It will change the cam timing back to straight up. I assume they don't check emissions real closely if you have a gutted cat. This is supposed to be a night and day difference. I never ran my motor before I changed it but its a bone stock 460 with 3.55 gears and 33's and its got plenty of wheel spinning power.

 

OK? 1970 460 timing chain, what is the diference in them? will I have to change anything else to do this? what else will it effect, computer, or anything else? you got my attention. And emissions around here is just a visual inspection, it just has to look like everything is there.

 

68-71 they had cam timing set to straight up. After that they changed cam timing to satisfy tougher emmissions standards. This was not good for power. I have a carbed 460 but I guy I work with has a 460 tow rig that had this mod done to it when he bought it, its injected and as far as I know its fine. Hopefully someone else can chime in here?

 

I'm going to look into this a little further. Since I opened the air intake up a lot, when I rev the engine up to around 3500 rpms and let off it back fires like crazy and the engine sputters for a few seconds. I wonder if timing is having an effect on it.

 

From what I understand all the F.I. 460's already have the straight up chain. Only the 73+ carb engines use the other one.

 

this is good info to know, saves me time from looking into it further. thanks.

 

well good thing you said something, I would have led this poor guy on a worthless goose chase...

 

I do know that by chopping off the little air restricting cone shaped things in the plastic peice of the air inlet (between the hoses), I gained alot of power. And the engine doesn't sound like its sucking for air any more and gave the exhaust a much nicer bellowing sound. I can't believe those cone shaped things were even there.

 

I'd put a MSD on it. i dont know much about the injection, infact i asked in a post myself, but hotter spark is always a shure bet. Just make shure you do the wires, coil and cap/rotor with all MSD or sim. parts. Having a hot box and stock wires will only cause problems. It will take a few $ but it pays for itself over time, keeps oil clean abit longer, and adds power over total power range.

 

thanks for the info, I am debating on what I want to do, some of the pulling places around here frown on using a msd box unless I go up to a higher class.