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04-03-2002, 01:34 AM
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#1 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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PONTIAC in Chevy pic
I tried takin a pic of the motor mounts, but it didn't come out, and since I am using the old 35mm, I won't get to retry till this weekend. However, here is the pic of the whole engine compartment.
OLDCHEV's friend, Jeff is a Pontiac fanatic, and said he looked at the numbers and off the top of his head believes it is a 350. I know it has a tiny @ss 2 barrel carb, HEI, int. Reg. alt. on it, and lots of slime and oil on top of an almost ford lookin blue paint. It looks like it was almost a bolt in afair, althoguh it does seem to sit a little higher than a Chevy small block. After some research, i find the Pontiac 350 is actually a good motor for a truck. I do not remember the actual measurements, but I know it has the longest stroke of all G.M.'s 350 motors, which makes it a natural for high torque. I'm still putting it into the GMC and selling it though.   ------------------ '69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it. FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite. If you need a pic posted, E-mail me at longhornmail@yahoo.com Andy, in Columbus Ohio [This message has been edited by longhornmail (edited April 03, 2002).] |
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04-03-2002, 09:00 AM
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#2 |
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Registered User
Join Date: Jun 2001
Location: Austin, Texas
Posts: 796
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I'm a pontiac nut and would like the 455 out of my Firebird in mine someday. Want to put a 428 in the bird. More pictures would be great.
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69 SWB C/10 5-6 drop 700R4 69 Firebird Convert 455 4 spd 70 Torino GT Convert Austin-Texas |
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04-03-2002, 09:11 AM
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#3 |
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Registered User
 Join Date: Jan 2001
Location: Middlesex, NC
Posts: 231
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Good to see this. I am about to drop in a 403 Olds motor and TH-350 trans into a 70 LWB. Are the mounts diferent then the usual chevy mounts? I bought new motor side mounts for the truck and figured they would bolt right up to the 403....
Orlando
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70 C-20 Custom Camper Build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=300251 |
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04-03-2002, 10:18 AM
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#4 |
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Hot Rods For Life
Join Date: Sep 2001
Location: Waxahachie, TX
Posts: 3,305
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I used to have a 69 LeMans with that motor. I had to drill holes through the head in each rocker arm stud and put pin through them because they were popping out after the rebuild. The rebuils was stock except for a mild cam. I stepped on it after my breaking in period was over and popped 3 rockers. So my Dad and I pinned all of them.
------------------ Zumo 1968 C10 LWB Dallas, Texas My Website |
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04-03-2002, 10:36 AM
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#5 |
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Registered User
Join Date: Aug 2001
Location: rock island,il,usa
Posts: 5,382
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I like to see the different ones! I guess my imagination is warped,but for a few yrs I ran what I could get my hands on(as long as it was BIG!). The olds was sitting a little high in my longhorn also. I used the stands & bottom brackets from a late 70s truck/with a 5.7 deisel. The mount is different than the chev mount,but the deisel mount crossed with an Olds car mount. I think if you could get a set of 72 BB stands,you could use an Olds car mount & bracket to get the nose height down on the 403 olds swap. Mine was a weld in swap.....none of the bolt holes lined up,& was also moved back(required cutting the firewall around the head & reworking).......the Olds will fit without that mod,but I have always tryed to move back any weight that I could. Another "generic swap"....
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http://community.webshots.com/user/hotrodhorn |
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04-03-2002, 11:21 AM
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#6 |
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Registered User
Join Date: Feb 2002
Location: Crawfordsville, IN USA
Posts: 84
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I've been thinking of Putting a Poncho in one also. I've seen several in magazines and one on ebay that were Poncho powered, but have never talked to anyone to get the specifics on the conversion. IndianOutlaw is a Pontiac Fan isn't he? He ever tried a switch??
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1986 Silverado CrewCab Dually 454 auto. 
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04-03-2002, 11:49 AM
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#7 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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no, indian is waiting for details too. I'll try to look in there and get more specifics when it stops raining. (dunno when that'll happen though)
------------------ '69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it. FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite. If you need a pic posted, E-mail me at longhornmail@yahoo.com Andy, in Columbus Ohio |
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04-03-2002, 11:57 AM
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#8 |
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registered IWATA user
Join Date: Feb 2002
Location: Baton Rouge
Posts: 4,481
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longhornmail, my 71 has a 350 pontiac from a 79 firebird, if i send you a pic of the egine comp and maybe mounts will you post it for me? thanks ,sean
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-'63 Ford Fairlane 500 coupe, v8, auto, faded and rusty. awaiting built roller 302 and some flat black -'99 Honda Prelude. vtech/5spd. no pipe, no intake, bone stock. awaiting new top end. -01 GMC Yukon SLT 5.3 dented and scratched with a noisy tranny. Take off that Von Dutch hat before i stab you with a 000 Mack. |
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04-03-2002, 12:08 PM
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#9 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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go for it, I'll have it up this evening.
------------------ '69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it. FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite. If you need a pic posted, E-mail me at longhornmail@yahoo.com Andy, in Columbus Ohio |
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04-03-2002, 02:21 PM
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#10 |
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Registered User
Join Date: Feb 2002
Location: Crawfordsville, IN USA
Posts: 84
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Some of you might already know this, but all Pontiac V-8s had the same dimensions. Hence, where a (Pontiac)350 will fit, a (Pontiac)455 will fit also. You can build a real powerhouse out of a Pontiac as any Ram Air parts (i.e. Heads, Cam, etc.)will bolt right in. SuperDutys and 455HOs were a bit different, though. I'm working on contacting a couple of guys that are running built-up Ponchos in their 67-72s, to see if they can give me a step-by-step on the swap. will post if anybody is interested.
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1986 Silverado CrewCab Dually 454 auto.
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04-03-2002, 02:26 PM
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#11 |
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Registered User
Join Date: Jun 2001
Location: Austin, Texas
Posts: 796
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I'm interested. Did see a 80's model Chevy truck out local junc yard that had a 350 Pontiac motor in it.
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69 SWB C/10 5-6 drop 700R4 69 Firebird Convert 455 4 spd 70 Torino GT Convert Austin-Texas |
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04-03-2002, 02:30 PM
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#12 |
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Registered User
Join Date: May 2000
Location: Alexandria, LA 71301
Posts: 1,451
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the only diff. in the SD's and HD's were the heads and exh. manifolds. i've only owned pontiac and chevrolets in my 25 years of auto lunacy. diff. i mean as in outside physical difference.
------------------ keep fly'in lo 66 gto ragtop 389/400 72 blazer (wuza4by) 68 swb fleet 350/700 98 tahoe 2dr (daily ride) [This message has been edited by lofly'a (edited April 03, 2002).]
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-02 avalanche (daily driver) -66 gto ragtop 389/400 (garage queen, hand-me-down from dad) -72 Tribute Trans Am (6.0LS/T56 6-speed) in progress -2003 YUKON (Wife's) -71 gmc swb fleet (current project, gonna shave everything, bags, stuff w/ 20's, gen III powertrain) -48 3100 SWB - 12/31/23 LONG TERM Project |
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04-03-2002, 05:10 PM
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#13 |
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Registered User
Join Date: Jan 2000
Location: Redondo Beach CA
Posts: 59
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longhornmail, thanks for posting this pic! Of in my opinion this truck really needs a GTO tripower intake :-)
The rear main seal on my BBC is leaking pretty bad, and I think it needs to come out to fix that. Maybe I should slip a spare tripower 455 Poncho in there?! ------------------ Tim Baker '67 chev small rear window, short wide bed,trashed CST seats, 402/TH400, Stainless Steel Brakes 6 lug disc kit. '65 GTO 389ci tripower, PS/PDB Doug Nash 5 spd.
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Tim Baker '67 chev small rear window, short wide bed,trashed CST seats, 402/TH400, Stainless Steel Brakes 6 lug disc kit. '65 GTO 389ci tripower, PS/PDB Doug Nash 5 spd. |
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04-03-2002, 05:14 PM
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#14 |
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Formerly yellow72custom
Join Date: May 2001
Location: Austin, TX
Posts: 7,531
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While junkyarding, i have proably seen 5-10 junkyard trucks with BOP engines in them, i am assuming of pretty good size (400+ cubes) b/c they all had factory 4bbl intakes on them. I guess they are a cheap way to put big power in these trucks.....
------------------ Lucas "Another proud owner of one of the coolest trucks ever built" drop_shift@hotmail.com My Daily-Driver: '72 Chevy LWB Custom/10. Rebuilt 350, 300 HP thanks to a few go-fast goodies. Ochre with a white top. Future plans include a frame off restoration, and maybe a blown 383.
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'72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg |
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04-03-2002, 06:32 PM
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#15 |
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GMC SHORT FLEET F/S
Join Date: Jun 2000
Location: SOUTH WILLIAMSPORT PENNSYLVANNIA
Posts: 2,117
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From what I am told, if you get motor mounts from a big body car like a 70 bonneville, all you have to do is drill a couple holes in the cross member and bolt it in! I do not think Pontiacs are a cheap way to go, unless your putting in a running used motor found cheap, these engine are expensive to rebuild! I have a 428 and a th400 short tail sitting and waiting for my truck. 3,800 just into the long block no accessiories yet, fluid damper, demon card, large 4 tube headers, and various other crap. If I could swing the money I would like to go with a tremec transmission or maybe a muncie I have sitting here? To far to talk about when I have not started the truck yet! Maybe longhornmail will sell me that short gmc?
------------------ Charles W. Hein S. Williamsport PA imaindianoutlaw@yahoo.com REFRIGERATION TECH 1971 Rolling chassis FOR SALE 1963 Pontiac Tempest 1965 Pontiac GTO 1956 Pontiac 2 dr
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CHARLES WADE HEIN HVACR FOREMAN. LEWISBURG U.S.P. |
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04-03-2002, 06:57 PM
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#16 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Actually, I have a few ppl locally that are interested, but ppl on this board will be the first to know if it don't sell quickly.
------------------ '69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it. FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite. If you need a pic posted, E-mail me at longhornmail@yahoo.com Andy, in Columbus Ohio |
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04-03-2002, 08:14 PM
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#17 |
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Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,727
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This guy lives in Austin. I don't remember his name, but I shot this photo at Little River. The truck has a 455 Poncho and runs 11.60's with 150 horse shot.
 ------------------ 70 GMC 3/4 ton Sierra Grande 402/TH400 72 Jimmy 4WD 4spd 4" & 35's 64 Corvette Coupe 68 Camaro 'vert TPI & TH700 69 Z/28 355 12.6's @110 72 Datsun 240Z-ol' reliable [This message has been edited by Mike C (edited April 03, 2002).]
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44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
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Andy 
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