Do you think 425 HP is a lot for a Big Block 1977 Ford F150?

Question

It had some modifications done to the engine so it and can smoke a Mustang (not off the line, but after the first 20 ft it left the Mustang "In the dust")

Answer 1

Are you running a modified 400 or are you running a 460? Your question is abit to vague. How do you know you have 425hp? Has it been dyno tested? Is this 425 horses at the rear wheels or just the engine? Is it a short bed or long bed because that will make a difference launching off the line. Now is it an automatic or a stick? Is it a C-4 or C-6 or FMX or standard truck transmission? Because if your running over 400hp and putting it through a truck transmission it will never run like a car. And you can make a truck run as fast a car. Another question, was the Mustang a 302 or a V6? So you can see that you really do need to add more information to your question so people like myself that are into racing can answer your question properly. As far as trucks go, I have a 1975 Ford Club Cab 3/4 ton with a 460 that I punched 30 over with a torquer intake and a 780 Holley with Hooker Headers and Flow masters and I pull a back hoe with it. Because when I am unhooked I can smoke alot of cars. It depends on the car your running against and what you have got. I won't go into detail about the cam, ignition and other things. I have a C-6 behind it with a 2000 stall converter and a B&M shift kit. So every detail makes a difference.

Answer 2

verify the cc's of your cylinder heads. once you've flat good pistons your in organisation. If not have your bore sizes checked If favourite flat tops can go decrease back in high quality. If the clearances are to loose have the block bored to the smallest favourite bore length. i do not comprehend climate you've a automobile 350. automobile blocks often times have midsection shift even as they are forged. Now to the cylinder heads. be particular the classes are suitable a million.5 - 2. thousandths clearance. If not have new metallic hatched classes put in. Do a good notched 3 perspective valve activity and verify the seats. in case your heads have decrease than sixty 5 cc's in them have them milled to a 23 degree perspective. use a twin plane intake from the Chevrolet performance Catalog. The intake might want to be re machined to in good structure the 23 degree replace on your cylinder heads. call Comp. Cams. They 'll help you for the nicely perfect camshaft and finished push rod springs (be-hive). the most important the following is to get more effective squeeze on your combustion chambers. it really is a thanks to get capacity. obviously you'd be operating ninety 3 octane now. a effective 650 vacuum secondary Holley receives you out of the hollow good. in case you recommend to buzz it to 6000 rpm. pick the 780 vacuum secondary carb. you at present will be at an straightforward 475 hp. %. out rims with the nicely perfect decrease back spacing first. The ninety 8 S-10 had 15 X 7 wheels. you are able to stretch it to eight huge bit you'd be tossing crap on your truck. Any 60 sequence tire will artwork.

Answer 3

Is that 425 HP on the dyno, or just a guess?

Answer 4

I'll tell you,like I told my wife--There is no such thing as TOO MUCH HORSEPOWER OR TOO MANY GUNS.