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440 in a 79 truck #2897484 03/09/21 07:46 PM 03/09/21 07:46 PM
Joined: Jan 2004 Posts: 8,282 fredericksburg,va C cudaman1969 OP master
cudaman1969 OP master C Joined: Jan 2004 Posts: 8,282 fredericksburg,va	Has anyone tried using the 68-70 HP exhaust manifolds on this swap.? Will the driver side hit the firewall?

Re: 440 in a 79 truck [Re: cudaman1969] #2897506 03/09/21 08:27 PM 03/09/21 08:27 PM
Joined: Dec 2014 Posts: 5,839 ohio R ruderunner master
ruderunner master R Joined: Dec 2014 Posts: 5,839 ohio	I've always heard the exhaust clearance issue was the steering column. Or valve cover to booster. Angry white pureblood male

Re: 440 in a 79 truck [Re: ruderunner] #2897530 03/09/21 09:11 PM 03/09/21 09:11 PM
Joined: Jan 2004 Posts: 8,282 fredericksburg,va C cudaman1969 OP master
cudaman1969 OP master C Joined: Jan 2004 Posts: 8,282 fredericksburg,va	I guess I’ll have till stick it in there to see what I can use. Got four options, headers (don’t really want to use) truck manifolds (one has pitted flange) C-body HP manifold and the ones I mentioned. I want them to come straight down to tie into the Lil Red exhaust

Re: 440 in a 79 truck [Re: cudaman1969] #2897558 03/09/21 10:22 PM 03/09/21 10:22 PM
Joined: Jan 2003 Posts: 18,424 UPPER MICHIGAN, MARQUETTE COUN... N NITROUSN I Live Here
NITROUSN I Live Here N Joined: Jan 2003 Posts: 18,424 UPPER MICHIGAN, MARQUETTE COUN...	I think they hit the frame.

Re: 440 in a 79 truck [Re: NITROUSN] #2897598 03/10/21 01:06 AM 03/10/21 01:06 AM
Joined: Jan 2004 Posts: 8,282 fredericksburg,va C cudaman1969 OP master
cudaman1969 OP master C Joined: Jan 2004 Posts: 8,282 fredericksburg,va	That’s not good

Re: 440 in a 79 truck [Re: cudaman1969] #2899229 03/15/21 02:07 AM 03/15/21 02:07 AM
Joined: Feb 2010 Posts: 18,493 Granite Bay CA Kern Dog Striving for excellence
Kern Dog Striving for excellence Joined: Feb 2010 Posts: 18,493 Granite Bay CA	I have a pair of BB 440 manifolds from my 75 Power Wagon. I installed headers for a few extra HPs..... Headers are a tight fit which I find strange given the overall size of the truck.

Re: 440 in a 79 truck [Re: Kern Dog] #2900668 03/19/21 11:21 AM 03/19/21 11:21 AM
Joined: Sep 2007 Posts: 910 West Virginia B B1Frank super stock
B1Frank super stock B Joined: Sep 2007 Posts: 910 West Virginia	i used HP manifold on my 78 440 truck and the drivers side hit the fire wall, went to chrome shorty headers, had to notch the frame, no big deal ....lol

Re: 440 in a 79 truck [Re: B1Frank] #2900749 03/19/21 02:02 PM 03/19/21 02:02 PM
Joined: Jan 2004 Posts: 8,282 fredericksburg,va C cudaman1969 OP master
cudaman1969 OP master C Joined: Jan 2004 Posts: 8,282 fredericksburg,va	Thanks what I need to hear, I have a C-body hp manifold that exits over top of the starter between 5&7. Might end up using the truck headers then figure how to get the pipe back to the Lil Red upright pipes.

Re: 440 in a 79 truck [Re: cudaman1969] #2901336 03/21/21 01:27 PM 03/21/21 01:27 PM
Joined: Jan 2004 Posts: 8,282 fredericksburg,va C cudaman1969 OP master
cudaman1969 OP master C Joined: Jan 2004 Posts: 8,282 fredericksburg,va	Well bad luck, pulled the exhaust manifold off the 440 that’s sat in my heated garage for 25 years. Found rats nests (a lot of dirt too) in the ports down around open valve and maybe down in the cylinder. Heads gotta come off now to check for damage. I had the six pac intake bolted on for many years the removed it thinking I would sell, maybe 10 years ago, stuck a another intake on it but no carb. Didn’t think!

Re: 440 in a 79 truck [Re: cudaman1969] #2904550 03/31/21 11:01 AM 03/31/21 11:01 AM
Joined: May 2003 Posts: 15,487 Florida S scratchnfotraction I Live Here
scratchnfotraction I Live Here S Joined: May 2003 Posts: 15,487 Florida	I suggest a set of hedman 79250 truck headers fit 2x & 4x4 truck chassis good fit and tuck up in the frame rails. would not be hard to hook to some LRE stacks I have a SB 85 stepside with some headmans, 2.5 pipes magnaflow muffs turns out right at the middle of the steps and pipes are up in the frame rails...I wish I had a set of stacks I think you can do a BB truck same way with ease.

Re: 440 in a 79 truck [Re: scratchnfotraction] #2904699 03/31/21 07:16 PM 03/31/21 07:16 PM
Joined: Jan 2004 Posts: 8,282 fredericksburg,va C cudaman1969 OP master
cudaman1969 OP master C Joined: Jan 2004 Posts: 8,282 fredericksburg,va	I have an old set of headers but have no idea who made them. I can try them once I get the engine down in the frame.

Re: 440 in a 79 truck [Re: cudaman1969] #2904841 04/01/21 08:47 AM 04/01/21 08:47 AM
Joined: May 2003 Posts: 15,487 Florida S scratchnfotraction I Live Here
scratchnfotraction I Live Here S Joined: May 2003 Posts: 15,487 Florida	for hedman look for the part # on the flange. often light stamp and over 5 & 7 cyl flange area. FYI...they do say a set of BB B-body headers fit but need the top of frame trimmed/notched to fit them in the truck chassis. I do not recommend it myself when you can just pony up around 200 bux and have a nice set that are for a truck chassis. IMHO, spark plug wire routing is a headache with those B -body tubes and the 79250 use the same stock wire routing as a 78 440 d200 non a/c with a set of center dump manifolds. all run behind the tubes ez pz. ALSO..speaking of manifolds you can get 2 of the stock center dump manifolds from a MH/truck chassis. I did this with the first 440 truck swap. I figured they were as = flow as stock manifolds get. those shorty center dump headers are about the same flow and shape/size.

Re: 440 in a 79 truck [Re: scratchnfotraction] #2904863 04/01/21 10:28 AM 04/01/21 10:28 AM
Joined: Feb 2007 Posts: 5,465 Michigan O oldjonny Don't argue with me.
oldjonny Don't argue with me. O Joined: Feb 2007 Posts: 5,465 Michigan	Originally Posted by scratchnfotraction for hedman look for the part # on the flange. often light stamp and over 5 & 7 cyl flange area. FYI...they do say a set of BB B-body headers fit but need the top of frame trimmed/notched to fit them in the truck chassis. I do not recommend it myself when you can just pony up around 200 bux and have a nice set that are for a truck chassis. IMHO, spark plug wire routing is a headache with those B -body tubes and the 79250 use the same stock wire routing as a 78 440 d200 non a/c with a set of center dump manifolds. all run behind the tubes ez pz. ALSO..speaking of manifolds you can get 2 of the stock center dump manifolds from a MH/truck chassis. I did this with the first 440 truck swap. I figured they were as = flow as stock manifolds get. those shorty center dump headers are about the same flow and shape/size. I still have a pair of center dump big block that came off a D100 (yes....D100) that was a 440 I parted out years and years ago. Nothing I am ever going to use. Never, ever argue with an IDIOT. They will drag you to their level and then beat you with their years of experience

Re: 440 in a 79 truck [Re: scratchnfotraction] #2904978 04/01/21 04:25 PM 04/01/21 04:25 PM
Joined: Jan 2004 Posts: 8,282 fredericksburg,va C cudaman1969 OP master
cudaman1969 OP master C Joined: Jan 2004 Posts: 8,282 fredericksburg,va	I have a pair of the center dump manifolds but the outlet hole is only 2-1/4 (thought of reaming it out a little to 2–1/2) one will have to have the port face surfaced, has some pitting. Off a motor home too. At least the dip stick tube will bolt up to it too.might have bought the wrong engine mounts, I’ll try posting a picture to let y’all see.

Re: 440 in a 79 truck [Re: cudaman1969] #2905273 04/02/21 10:23 AM 04/02/21 10:23 AM
Joined: May 2003 Posts: 15,487 Florida S scratchnfotraction I Live Here
scratchnfotraction I Live Here S Joined: May 2003 Posts: 15,487 Florida	the mounts should be the straight BB set 77-78 truck chassis. yep I had to fab a piece to weld on my dip tube so it worked same spot with headers. but rust got it and had to fab another tube with tab for mounting out of flared steel line. yes open up the outlet and I myself just use the copper RTV on the manifold after a good cleaning with brake clean on head/manifold surfaces. I have used some really pitted up manifolds before and the trick is to use the copper rtv and let it cure 24hrs before use. fat bead around ports and hand snug the bolts, 24hrs cure time and torque to specs. never leaks. I coat my header gaskets and do the same thing for no leaks for yrs. you know it can be addictive with the BB truck stuff right? I lowered/flip shackle/axle under spring & tubbed both of mine and have a-body 8 3/4 tucking 12 wide rims with a 29x15x15 M/Ts in the fenders (bolt in with shackle flip) and e-body 8 3/4 in the other tucking 10" wide rims. hope to go B-body 4 speed in the near future on the 88 440 truck. see one thing leads to another.

Re: 440 in a 79 truck [Re: scratchnfotraction] #2905424 04/02/21 03:21 PM 04/02/21 03:21 PM
Joined: Jan 2004 Posts: 8,282 fredericksburg,va C cudaman1969 OP master
cudaman1969 OP master C Joined: Jan 2004 Posts: 8,282 fredericksburg,va	What I have,

Re: 440 in a 79 truck [Re: scratchnfotraction] #2905425 04/02/21 03:24 PM 04/02/21 03:24 PM
Joined: Jan 2004 Posts: 8,282 fredericksburg,va C cudaman1969 OP master
cudaman1969 OP master C Joined: Jan 2004 Posts: 8,282 fredericksburg,va	Originally Posted by scratchnfotraction the mounts should be the straight BB set 77-78 truck chassis. yep I had to fab a piece to weld on my dip tube so it worked same spot with headers. but rust got it and had to fab another tube with tab for mounting out of flared steel line. yes open up the outlet and I myself just use the copper RTV on the manifold after a good cleaning with brake clean on head/manifold surfaces. I have used some really pitted up manifolds before and the trick is to use the copper rtv and let it cure 24hrs before use. fat bead around ports and hand snug the bolts, 24hrs cure time and torque to specs. never leaks. I coat my header gaskets and do the same thing for no leaks for yrs. you know it can be addictive with the BB truck stuff right? I lowered/flip shackle/axle under spring & tubbed both of mine and have a-body 8 3/4 tucking 12 wide rims with a 29x15x15 M/Ts in the fenders (bolt in with shackle flip) and e-body 8 3/4 in the other tucking 10" wide rims. hope to go B-body 4 speed in the near future on the 88 440 truck. see one thing leads to another. Did you lower the front and how?

Re: 440 in a 79 truck [Re: cudaman1969] #2905442 04/02/21 04:01 PM 04/02/21 04:01 PM
Joined: May 2003 Posts: 15,487 Florida S scratchnfotraction I Live Here
scratchnfotraction I Live Here S Joined: May 2003 Posts: 15,487 Florida	does both headers have that #79250? then you have a set. front end? no. it is at stock ride height. 235/75/15 on a 8" wide 4.5 backset rim. I run a stock sway bar and it just does clear a parking stop by 1/8" - 1/4 (remember that when you lower it and run a sway bar) (and a sway bar is a BIG IMPROVMENT on steering/handling with a BB up front. the trick there is to use the 1/2 ton pocket LCA off of vans on the front to lower it.

Re: 440 in a 79 truck [Re: scratchnfotraction] #2905444 04/02/21 04:07 PM 04/02/21 04:07 PM
Joined: May 2003 Posts: 15,487 Florida S scratchnfotraction I Live Here
scratchnfotraction I Live Here S Joined: May 2003 Posts: 15,487 Florida	for you engine mounts. IIRC those are BB 65-71 2x truck chassis which may work on a mid 80s am I not sure. the 4x4 mount looks like that but has more offset and a hole for the oil pump plug clearances. I have a set of those and a 4x4 set but only have used the 4x4 set on a 86 chassis. fit was correct with them. post if you test fit them.

Re: 440 in a 79 truck [Re: scratchnfotraction] #2905479 04/02/21 05:11 PM 04/02/21 05:11 PM
Joined: Jan 2004 Posts: 8,282 fredericksburg,va C cudaman1969 OP master
cudaman1969 OP master C Joined: Jan 2004 Posts: 8,282 fredericksburg,va	They have that oil pump hole, but I can make another slot behind the one it has, plenty of room or just drill another hole in frame too. Both headers are same make, they might be 25-30 years old (how long I’ve had them) But still in good shape. Thanks for all the info

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