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  #1  
Old 10-25-2011, 05:56 PM
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Default Build for towing?!

Hey guys,
I want to start off first by saying I'm no expert but do know my way around engines. Here's a little background...

I currently have a '79 F250 , 6" lift, 35's, mild 460, 4 speed with 3.50 gears that I currently pull a 16ft car trailer with a '78 F150 trail truck on it. I was looking into getting a diesel this coming spring but realized I would have no need for my '79 anymore, keep in mind this has been a dream truck of mine since I was young. I figured for any diesel I'd be looking at $5k minimum! For that kind of money, I can build a really nice '79.

My question, how should I go about building the 460 for towing? Gas millage is a little bit of a concern but I do realize it's a big block. Currently its a D1VE stock block, D3VE heads with a intake gasket match, Eddy #7167 camshaft, Eddy dual plain performer intake, Holley 750 DP, full MSD ignition and L&L fender exit headers.

Plans are to build a solid engine for towing, freshen up the trans and t-case, re-gear to 3.73's and get a rust free cab.

Any and all suggestion are appreciated! Thanks in advance!

Just for good measure

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Last edited by bleedinblue; 10-25-2011 at 09:38 PM.
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  #2  
Old 10-25-2011, 06:22 PM
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I have a build that I utilise for this exact purpose that is powerful torquey and bullet proof.

.030" over 460 with 22 cc dished KB hypers at or near 0 deck. Rotating assembly balanced.
Stock resized rods are all that is necessary.

D3 cylinder heads with budget port work 2.11" intake and 1.65" exhaust decked to achieve 8.5 to 1 static c/r with the above rotating assembly. Stock rocker arms are fine.

Voodoo cam 213/219 custom ground with a 109 lobe sep
early straight up timing set.

Recurved duraspark distributor or properly curved msd unit as you have. As deliverd curve is too slow.

Stock dual plane iron intake or eddy performer intake with 1" 4 hole spacer and 750 vac sec holley.

Headers and 2.5" duals with straight through mufflers like the large case magnaflows.

The combo will deliver 380 plus hp at about 4600 rpm and 500 pound feet of torque at about 3100 rpm every day of the week on regular fuel at sea level.


Though some additional gear would help when towing your current set up is doable...


Hope this helps...


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  #3  
Old 10-25-2011, 06:41 PM
rmcomprandy rmcomprandy is offline
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Quote:
Originally Posted by bleedinblue View Post
Hey guys,
I want to start off first by saying I'm no expert but do know my way around engines. Here's a little background...

I currently have a '79 F250 , 6" lift, 35's, mild 460, 4 speed with 3.50 gears that I currently pull a 16ft car trailer with a '78 F150 trail truck on it. I was looking into getting a diesel this coming spring but realized I would have no need for my '79 anymore, keep in mind this has been a dream truck of mine since I was young. I figured for any diesel I'd be looking at $5k minimum! For that kind of money, I can build a really nice '79.

My question, how should I go about building the 460 for towing? Gas millage is a little bit of a concern but I do realize it's a big block. Currently its a D1VE stock block, D3VE heads with a intake gasket match, Eddy #7167 camshaft, Eddy single plain intake, Holley 750 DP, full MSD ignition and L&L fender exit headers.

Plans are to build a solid engine for towing, freshen up the trans and t-case, re-gear to 3.83's and get a rust free cab.

Any and all suggestion are appreciated! Thanks in advance!

Just for good measure

Get a different cam and intake manifold, increase the compression ratio to between 8.5 and 9/1 and run a fresh air intake system are the main things. There are some other modifications which will also help but, they will not do near as much as these.
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  #4  
Old 10-25-2011, 07:56 PM
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Quote:
Originally Posted by The Mad Porter View Post
I have a build that I utilise for this exact purpose that is powerful torquey and bullet proof.

.030" over 460 with 22 cc dished KB hypers at or near 0 deck. Rotating assembly balanced.
Stock resized rods are all that is necessary.

D3 cylinder heads with budget port work 2.11" intake and 1.65" exhaust decked to achieve 8.5 to 1 static c/r with the above rotating assembly. Stock rocker arms are fine.

Voodoo cam 213/219 custom ground with a 109 lobe sep
early straight up timing set.

Recurved duraspark distributor or properly curved msd unit as you have. As deliverd curve is too slow.

Stock dual plane iron intake or eddy performer intake with 1" 4 hole spacer and 750 vac sec holley.

Headers and 2.5" duals with straight through mufflers like the large case magnaflows.

The combo will deliver 380 plus hp at about 4600 rpm and 500 pound feet of torque at about 3100 rpm every day of the week on regular fuel at sea level.


Though some additional gear would help when towing your current set up is doable...


Hope this helps...


I was thinking about keeping the same bore and going with a small stroker kit, would that give more torque over .030 over bore?

I made a correction in the original post, I'm currently running a dual plane and a Holley 750 dp vacuum secondaries. Truck also has 3" exhaust for max flow.


Quote:
Originally Posted by rmcomprandy View Post
Get a different cam and intake manifold, increase the compression ratio to between 8.5 and 9/1 and run a fresh air intake system are the main things. There are some other modifications which will also help but, they will not do near as much as these.
As I stated above, I corrected my original post. I'm running a dual plane, not a single. I'm currently just running a 14" K&N round filter atop the carb.
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Old 10-25-2011, 08:07 PM
rmcomprandy rmcomprandy is offline
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Quote:
Originally Posted by bleedinblue View Post
I was thinking about keeping the same bore and going with a small stroker kit, would that give more torque over .030 over bore?

As I stated above, I corrected my original post. I'm running a dual plane, not a single. I'm currently just running a 14" K&N round filter atop the carb.
RING SEAL will be most important.

What 2 plane ... ?
Edelbrock "Performer", (NOT the RPM version), or a ported production manifold would be best.

Use a CLOSED air cleaner vented to FRESH air; not underhood air.
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CUSTOM ground camshafts
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Old 10-25-2011, 08:53 PM
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Quote:
Originally Posted by rmcomprandy View Post
RING SEAL will be most important.

What 2 plane ... ?
Edelbrock "Performer", (NOT the RPM version), or a ported production manifold would be best.

Use a CLOSED air cleaner vented to FRESH air; not underhood air.
Yes, the eddy performer. What ported manifold would you suggest?
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  #7  
Old 10-25-2011, 09:03 PM
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Quote:
Originally Posted by bleedinblue View Post
Yes, the eddy performer. What ported manifold would you suggest?
Your ported performer is fine. Utilise a 1" 4 hole spacer to not only insulate the carb but allow the airflow from the carb to have more maneuvering room to turn into the manifold plenum. Block off or restrict the heat cross over in the intake depending on climate. I restrict to 11/32" hole in steel sheet inserted into the cross over cut out in the intake gasket.

Randy was referring to a ported factory intake. Your eddy is fine and will make more torque and HP above 2000 to 2500 rpm anyway.


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Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section

http://R-H-P.biz

"ReinCarNation High Performance" (253)-988-6648


http://www.facebook.com/SMJRHP#!/SMJRHP
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  #8  
Old 10-25-2011, 09:23 PM
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Quote:
Originally Posted by The Mad Porter View Post
Your ported performer is fine. Utilise a 1" 4 hole spacer to not only insulate the carb but allow the airflow from the carb to have more maneuvering room to turn into the manifold plenum. Block off or restrict the heat cross over in the intake depending on climate. I restrict to 11/32" hole in steel sheet inserted into the cross over cut out in the intake gasket.

Randy was referring to a ported factory intake. Your eddy is fine and will make more torque and HP above 2000 to 2500 rpm anyway.


I currently have a 1" spacer but its just an open square port.

Going back to bore and stroke, which would better suit my needs, larger bore or longer stroke?
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Old 10-25-2011, 09:33 PM
BBFRanger BBFRanger is offline
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Not about the motor, but I saw you hav 35s for rubber. A set of 4.10 gears would make a world of difference with what you already hav.
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Old 10-25-2011, 09:36 PM
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gears gears gears
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Old 10-25-2011, 09:38 PM
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Not about the motor, but I saw you hav 35s for rubber. A set of 4.10 gears would make a world of difference with what you already hav.
Quote:
Originally Posted by turbo2256b View Post
gears gears gears
I was thinking of going to 4.10's but I think it would loose out on millage when cruising down the interstate. I think 3.73's would be a better option. Thoughts?
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Old 10-25-2011, 09:44 PM
BBFRanger BBFRanger is offline
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Im under the impression this is mainly a tow only vehicle, with 35" rubber and pulling a load 410s would be a great choice. If thats the 4spd I'm thinking of it has a high 1st gear and low 4th making it a pain to take off and revs to the moon at highway speed. Pulling a load your not overly concerned with 70mph+ near as much as getting your trailer up and moving, and better yet keeping it moving at highway speed up hills without downshifting
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Old 10-25-2011, 09:44 PM
turbo2256b turbo2256b is offline
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3.90 would be a better choice.
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Old 10-25-2011, 09:50 PM
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probably a t18 or 19 tranny supper low first 1 to 1 fourth. 3.90 or 4.10 gears shouldnt need 1st except for real heavy loads.

I tow with 4.10 gears and 31" tires at one time even my 14000 lbs boat and trailer.
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Old 10-25-2011, 09:55 PM
BBFRanger BBFRanger is offline
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I'm thinking of the one in like 86 f350. We painted and put another 460 in one a year or so back, had a 4spd and 410s. He pulled a decent sized dozer on a gooseneck, said it was hard to get going because of the high 1st.

Sorry to go OT
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