Best Block for a Torque Monster?
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Best Block for a Torque Monster?
Hey Folks,
I've been doing searchs here and on the web to get as much info as possible on what motor would make the best torque. I have a 1966 F100 Ranger Custom Cab long bed. It currently has a 302 with a C6 out of a '77 F150 (going by casting numbers). I was looking at a 460 or a 400c. I've also read some good stuff about a 390block/428crank combos.
My goal is to get 400lb+ of torque at the rear wheels as close as possible to 2000 rpm and peak numbers in the 450+ range @ 3500 rpm. What block and head combo would get me there?
Thanks,
Bill
I've been doing searchs here and on the web to get as much info as possible on what motor would make the best torque. I have a 1966 F100 Ranger Custom Cab long bed. It currently has a 302 with a C6 out of a '77 F150 (going by casting numbers). I was looking at a 460 or a 400c. I've also read some good stuff about a 390block/428crank combos.
My goal is to get 400lb+ of torque at the rear wheels as close as possible to 2000 rpm and peak numbers in the 450+ range @ 3500 rpm. What block and head combo would get me there?
Thanks,
Bill
Post Fiend
Joined: Jan 2003
Posts: 8,600
Likes: 4
From: Iowa
Just about any 390 with a decent cam should get you there. Just port the stock heads a little and you're there. Most any good condition 390 block should handle this, as that's the whole idea behind lowering the block skirt below the crank centerline. If you're paranoid about it, get an FT block, out of heavy duty trucks, will provide even more main support, as well as a forged crank. If you go this route, you're stuck with a 3.78" stroke, because they never made a 428 FT series.
A 410 (390 block and 428 crank) with a good cam and ported heads would get you there and then some.
I would recommend the Crane 343941 cam.
If you can find a older truck with a 360 and a C6, that would be ideal, because then you'd have the block, heads, and everything else, as well as a tranny that will bolt to it. Then you just need the 428 crank, rods, and pistons. A .080" overbore on your 360/390 block will yield 428 specs, so you would then be building a 428. You'll have to check your block to make sure you handle it if you go that way.
Dont forget good ARP hardware, headers, a good intake, and a good carb!
Good luck!
A 410 (390 block and 428 crank) with a good cam and ported heads would get you there and then some.
I would recommend the Crane 343941 cam.
If you can find a older truck with a 360 and a C6, that would be ideal, because then you'd have the block, heads, and everything else, as well as a tranny that will bolt to it. Then you just need the 428 crank, rods, and pistons. A .080" overbore on your 360/390 block will yield 428 specs, so you would then be building a 428. You'll have to check your block to make sure you handle it if you go that way.
Dont forget good ARP hardware, headers, a good intake, and a good carb!
Good luck!
Last edited by rusty70f100; Oct 23, 2003 at 11:53 AM.
Post Fiend
Joined: Feb 2001
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From: Missouri
Most people know I am a big FE fan but in your situation where you have to change trannys or bellhousings at least and the engine perches will probably need modification I would go with the 460. It is cheaper to soup up and displacement makes torque no matter how you want to look at it.
Senior User
Joined: Oct 2003
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From: Longview Tx
if i where you i would put my money on the 460. i have a 400 in my truck and it has enough power to turn 37" boggers to smoke and then some. but the parts to build a 400 just are not as abundant as the 460.
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What kind of torque numbers can I get from a 460 vs. 400. I'm looking at stroke. I know that there is only a .15in diffrence. This truck will be multi purpose. I want to set it up as a "street truck" and maintain the ability to tow. But, I would like to take it to the local drags and do some bracket racing. I've seen a '71 F250 camper special with a 429CJ run 13.8 at Firebird.
Thanks,
Bill
Thanks,
Bill
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Elder User
Joined: Dec 2002
Posts: 649
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From: Monterey bay area
I would opt for a 351W based stroker for 400 ft lbs at the rear wheels...392 cid should suffice...
just go with some AFR or edelbrock heads along with a good intake and carb....
the cam will determine where this torque will happen..
do use roller rockers as they help free up some friction...
I would also go with headers and a good ign system
just go with some AFR or edelbrock heads along with a good intake and carb....
the cam will determine where this torque will happen..
do use roller rockers as they help free up some friction...
I would also go with headers and a good ign system
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Senior User
Joined: Oct 2003
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From: Longview Tx
torque from a 460 does not even compare to the 400m. there just isn't the amount of parts readily available for the 400m. not that the 400m isn't capably of posting incredible numbers. for the time and money spent you could build a very tough 460. what i would do is find a complete 460 rebuild it, with a set of flat top pistons, a comp cam some thing like a 268H or 270H. a set of dove heads would be nice, but not necessarily as compression may be higher than you might won't. a set of 92cc heads with port work and good valve job would work great and compression would be around 10:00:1. and finally a edelbrock perfomer RPM intake a 750cfm carbureator and a set of headers with 1 7/8 tubes. this should give you some where around 400+ hp and around 500 ft lb of torque. i hope this in some way helps you out. FORDS FOR EVER !!
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I'm thinkn' 460
Ok so I think I'll be going with a 460. I'm going to stop by the local Pick a Part and look around. But, what should I look for? What are DOVE heads? Are we talking 1970 heads D0=1970?Whare would I find the casting numbers? Also what would a
small block c6 be worth. I've got a '77 302 in it now with a peformer intake and Edelbrock 600 carb. I also have the Ported heads off of my '85 GT Mustang with 3 angle valve job and port work along with adjustable rocker stud convertion and hardend push rods. What are they worth? The stuff runs. Thanks for all the input. I will be doing the work myself.
Ciao,
Bill
small block c6 be worth. I've got a '77 302 in it now with a peformer intake and Edelbrock 600 carb. I also have the Ported heads off of my '85 GT Mustang with 3 angle valve job and port work along with adjustable rocker stud convertion and hardend push rods. What are they worth? The stuff runs. Thanks for all the input. I will be doing the work myself.
Ciao,
Bill
Senior User
Joined: Jan 2004
Posts: 284
Likes: 1
From: North Carolina
How woule you like 500 ft/lbs and 618 HP? Then go with a 460. Check this link out.
http://www.popularhotroddingweb.com/...0108phrbbford/
I just bought a project truck with one in it purely by accident while looking for a project and something to haul stuff from Lowes etc. Liked the look of the machine sitting all alone in a pasture and it ran good so I brought it home. My idea is to make it a sleeper; only fix the body to get rid of rust and add some primer but build a monster under the hood. Got this guy at work with a Viper. Might not could beat him but sure would love to embarrass his car. :-) Ever look at a Viper from the rear? The mirros and the fat *** always seem to remind me of Mickey mouse.
http://www.popularhotroddingweb.com/...0108phrbbford/
I just bought a project truck with one in it purely by accident while looking for a project and something to haul stuff from Lowes etc. Liked the look of the machine sitting all alone in a pasture and it ran good so I brought it home. My idea is to make it a sleeper; only fix the body to get rid of rust and add some primer but build a monster under the hood. Got this guy at work with a Viper. Might not could beat him but sure would love to embarrass his car. :-) Ever look at a Viper from the rear? The mirros and the fat *** always seem to remind me of Mickey mouse.
Junior User
Joined: Dec 2003
Posts: 75
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From: Grass Valley, CA
GearJamer,
I have a 521 that I'm taking delivery of next week. I ran it through a Virtual Engine Dyno, I have the results posted in my Galleries. the 521 is going in a 95 F-250 that I plan to daily drive in CA. It will have all the emissions hooked up to it, so I don't expect quite the numbers the virtual dyno is showing, but if you don't have to be concerned with emissions, 500 tq is easy and "relatively" inexpensive with a 460 whether you choose EFI, or Carb.
I have a 521 that I'm taking delivery of next week. I ran it through a Virtual Engine Dyno, I have the results posted in my Galleries. the 521 is going in a 95 F-250 that I plan to daily drive in CA. It will have all the emissions hooked up to it, so I don't expect quite the numbers the virtual dyno is showing, but if you don't have to be concerned with emissions, 500 tq is easy and "relatively" inexpensive with a 460 whether you choose EFI, or Carb.
Junior User
Joined: Oct 2003
Posts: 94
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From: College Station, TX
i've got a pretty old copy of desktop dyno here, and i ran some modded up 460 numbers through it. a mildly stroked 460 (484ci) with roller cam pushes over 600 ft-lb. of torque from 2000-3500 rpm before it starts to drop off. plus it peaks at about 525 HP at about 4500 rpm.
Junior User
Joined: Dec 2003
Posts: 75
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From: Grass Valley, CA
If your gonna stroke a 460, why not go with a 521? My reasons are as follows: Eagle makes a nice rotating assembly that is really for a Pontiac bb. Perfect fit, 6.8" rod length, 4.390 bore, 4.3" stroke, readily available, which makes it a bit less expensive to build, the best part is, you get a top quality 4340 rotating assembly. And, don't forget, there is no replacement for displacement! 8.5 liters sounds like the potential for a torque monster to me!
Posting Guru
Joined: Mar 2002
Posts: 1,098
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From: CA
521, I am a fan of stroker motors, but I am wondering what is the actual cost to do the whole thing? Say you wanted to build up a 460 a certain way. Instead, you decide to build it to 521 ci. What would the price differance be?