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#1
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A buddy who drove part of the time was impressed with the TORQUE the Pontiac engine produced. He was amazed we were able to maintain 80 mph and pass cars up long steep grades without as much as a downshift. The LS engines don't have the torque of the old Strato-Streak Pontiacs. And torque rules on a street car.
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Jeff |
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#2
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FWIW, there are quite a few members here that own the late model GTO, as well as the old iron, me being one of them. They are 2 different cars, built 40 years apart from each other. I wouldn't expect them to be the same.
FYI, Holden used the Monaro body in Australia years before it was imported to the USA, one of the body/model options was named, guess what, Holden Special Vehicles (HSV) GTO, it was also available in a 4 door, and was called the HSV GTS. Holden already had a GTO, they just exported it to the USA, to be sold under the Pontiac name, by Pontiac dealers. The second year Pontiac had styling input, and got both tailpipes on opposite sides of the car, along with twin hood scoops. It had a GTO moniker on it long before Bob Lutz commandeered it for sale in the USA by Pontiac dealers. I had a chip on my shoulder too, when it became available, but after test driving one, that chip fell off.......... ![]() You guys that live in CA can find old cars that aren't all rusted to hell, back east we don't have that luxury. If you could find an old GTO chances are it would look like this: ![]() The best part, asking price is only $4000, and it's a roller shell, no drivetrain, interior, etc. etc. So we find vehicles that have some metal left in them for drivers. The other alternative is get one that comes from a rust free portion of the country, or pay $50-$60,000 for one that someone else has restored. $60,000 is over twice what paid for my 05 new. It is very expensive for guys back east to have vintage cars. People from the southwest just don't have to deal with rusty hulks that were only meant to be driven, possibly 10 years when they were new. Because you can find and buy vintage cars in CA, and we have a real tough time finding something, doesn't mean we're not Pontiac fans. |
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#3
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Yeah a friend paid $55,000.00 for a 65 GTO. This is funny standing next to a friend I asked him hey what do you think of Joe’s GTO. He said its just a regular GTO. Its not fast like yours. I laughed…Made me feel good…LOL
Definitely nothing but rust buckets in New England area.
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#4
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Jeff |
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#5
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In order to match the performance of that LS, your car would have its antique behemoth of an engine propped up by a lumpy aftermarket roller cam and lifters, spring pressures to handle the aggressive lift and heavy valve train, aftermarket roller rockers, aluminum aftermarket heads, aftermarket distributor and ignition. Since the motor would no longer be tractable, a loose convertor, tall gears and a modified Turbo400 trans or an aftermarket overdrive trans would have to be fitted. Try your trip in one of those so-called street cars and the average, weekend mechanic better keep Enterprise on speed dial, they pick you up. Correctly performed, swapping in a modest LS engine provides the same level of performance along with the reliability of factory engineered components, longevity and real-world gas mileage. In the O/P's case in particular, the time he has spent behind the wheel would be measured in months instead of minutes. An LS swap can even be carbureted and run a small block Ford distributor if simplicity is your game. I apologize for derailing the OP's thread and am sympathetic to his situation. Were I in his shoes, given his original goals for the use of the car, I would have "rode the LS wave" so I could enjoy driving instead of owning a garage/shop ornament.
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Triple Black 1971 GTO |
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#6
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Thats the new trend LS motors in original GTO’s there’s tons of them out there YouTube is full of them. Of course its not for everyone. But I can understand the check writers doing it. Its definitely a different Pontiac world out there. Hey to each his own, what ever floats your boat.
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#7
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I disagree: I have driven LS powered cars and they don't have the 445 pounds of torque my old stock 400 has. They need to downshift to get up those steep grades. I've driven my dinosaur to Yellowstone, Grand Canyon, Mesa Verde, all over the place for the last 40 years at high speeds and in relative comfort and no down-side. I have zero need to ad a complex, failure-prone, soul-less powerplant to my classic cars. If I want the new car experience, I'll drive a new car.
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Jeff |
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#8
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More tech, more wires, sensors has its benefits but a downside. More things to break and you have to take the time to learn about fixing problems or pay someone big bucks to fix it. And if you want to up the power with aluminum heads, roller cam, FI ect you can. And you car is still cool and not lame and weak. IMO if you want to jack up your car and give it a soulless engine, stuff a LS in it. Better yet, keep a Pontiac in it or sell it to someone with the intent of keeping a Pontiac in it. |
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#9
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Dont yall blaspheme in here
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468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
| The Following User Says Thank You to 64speed For This Useful Post: | ||
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#10
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FYI!Calif cars rust from the inside out!Most all after years have front and rear windows that leak.On the front the water goes behind the firewall pads and settels in the foot pans and rust out.The rear goes under the trunk mats and rust the trunk pans out and a lot of time take out the rear frame mounts.Buyers beware!Tom
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#11
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Remember when the LS Corvette engines were dropping valves all the time and literally grenading the engines? We fixed a chit ton of those heads. Everyone wanted them repaired "just incase"...... Don't recall the old Pontiac engine having that issue.
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| The Following User Says Thank You to PAUL K For This Useful Post: | ||
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#12
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They are soulless and the easy way out for someone not good enough or smart enough to build a reliable high powered street engine. It takes a certain amount of tenacity, intestinal fortitude to stay the course and is a quality I highly respect.
This is the largest Pontiac forum on earth. The Pontiac platform might just well get beat by Chevy, Ford and Mopar on most of the high end racing spectrum. But the Pontiac platform is the best on the street. Now my wife knows how I am about this subject. She does have to live with me as I spend lots of money on my car. But she knows in a instant when a new Pontiac shows up at the track if its a Pontiac, by the sound the engine makes. They must make that sound a Pontiac makes to be cool in her book. I married a good one. Being a fan of the Pontiac is all about the engine, the engine,the engine. The rest is just a shell the same as Chevy, Olds and Buick. |
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#13
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My FIL has a 68 Camaro with and an LS3 that has been nothing but a pain in the ass. Mostly from expense of parts and tune perspective. With my first engine I could TOTALLY bust his ass from a stand still or a roll. Caster1 doesn’t post on here very much but he has my exact engine combo almost and he’s put over 10k miles on it. My truck of course has an LM7 5.3 and it’s great but it is soulless. I had a 2002 Camaro SS. Fast as hell but soulless. I got all the creature comforts I want in my Tempest (PW AC etc).
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468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
| The Following User Says Thank You to 64speed For This Useful Post: | ||
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#14
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I have a Butler/Ross all forged rotation assembly. I have the Edelbrock round port heads and everything is studded. The first iteration cracked the lifter bores on the number 2 cylinder. The 2nd engine had a pinhole in one of the cylinder and the block has now been sleeved. That will be my only concern as I know anything can happen but I have faith in my rotating assembly. So many people have blasted my engine "blow ups". The first one was TOTALLY my fault despite what a few people have said. That SOB revved to the damn moon before I even knew what had happened. I think you would be hard pressed to find any street build that could have survived it without really high end lifters and bore braces and all that. This engine failure was a fluke. My machinist was incredibly supportive and even though he has no obligation he took it back and is repairing it as a free job. All new bearings and gaskets and sleeve etc. Basically a total rebuild again reusing only my crank rods and pistons. I cant really complain about that. The only thing I can complain about is his speed which I understand is being done on nights and weekends cause its not a paying job.
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468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
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#15
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What a timely topic - this was just posted on the Pontiac Engine Design and Theory page on FB by someone named Uzek Susol who drives his 67 Firebird on vacations 5-7000 miles per trip: https://www.facebook.com/groups/pont...ibextid=W9rl1R
“Hi all, this is my 67 Firebird 400 that my wife & I use primarily as our vacation car. Most summers we take a few weeks & put 5-7,000 miles per trip. Currently it has 30,000 miles on a rebuild on the stock matching #'s flat top piston 400 with the addition of a large duration/high lift cam, 7/16" screw in studs, 1.5 full roller rockers, wideband O2 sensor tuned 800 CFM Quadrajet, DUI HEI, Dougs headers, Tremec 5 speed. Over the last trip I started to have a lifter noise between 1,200 & 1,800RPM which would not adjust out. I have talked with Butler at length & just recieved their package with the below contents. I'll set the original 670 heads aside looking at the aluminum heads as a slight performance upgrade & more freindly with todays questionable fuels while retaining the same compression ratio. Im looking for reliability as we are sometimes 5 plus States away from home. I will be using the stock cast iron 67 intake manifold as I have functional Ram Air air cleaner, hood panel & have opened up the factory hood vents, Butler advised the Edelbrock RPM manifold but it sits taller than the stock one & the regular Performer does not flow as well as the stock 67 intake as I understand. Any words of advice/tips before or during teardown on this 400? I am an ASE Certified Automotive Tech by trade for the last 35 years so the process does not concern me just looking for any Pontiac tips from Pontiac people. Thank you. 1 EDL-61595-2; Pontiac 72cc DPORT Edelbrock Heads - Complete (Pair) **Hyd Roller (Double Spring)** 2 CCA-BP8020SP; Butler/Comp SP Street Performance Billet Roller Cam (HR) 276/282, 224/230, .503/.510, 112LS (Std Firing Order/ Std Journals) 3 NIC-10120-STD; Pontiac Pro Billet Timing Set - Billet Gears 9 Keyway Crank Sprocket w/Bronze bushing on cam gear 4 ARP-190-3609; Pontiac Head Bolt Kit For Edelbrock DPORT/ Performer Cylinder Heads 5 ABO-KIT-IM; Intake Manifold Bolt Kit, 65-79 Hex Head Stainless Steel w/washers 6 SPM-11765; Pontiac 5/16" Thick High Density Valve Cover Gasket Set/2 7 SPM-19374; Pontiac 400-455 BP Head Gaskets (can be used on 350's also) (Set) 8 BPI-Gasket-Header-DP; Butler DPort Header Gasket, *2.120 X 1.540*, Large Port fits Factory and Aftermarket Set June 7, 2023 2:19:40 PM CDT Page 2 of 4 THANKFPR-1233; Pontiac Fel-Pro Standard Intake Gasket / Includes Heat X-over Block Off (Set) 10 CCA-7902; Adjustable Pushrod Length Checker 5/16 (8.500- 9.800) 11 JLI-2112OPR-16; Johnson Lifters, Pontiac Lifter Set, Hi-Perf Hydraulic Roller, 326-455, Set/16 12 BOP-PDG37; Pontiac 301-455 Polymer Dist. Gear -0.491 13 BPI-M54DS-PRO-KIT; B.P PRO 60psi Oil Pump w/pick up and copper gaskets(gasket taped to lid/flap of box) 14 BPI-M54DS-PRO-PUMP-ONLY; B.P PRO 60psi Oil Pump w/pick up and copper gaskets(gasket taped to lid/flap of box 15 ASC-3/8 HI Collar Lock Washer LW; ASC-3/8 HI Collar Lock Washer LW 16 ASC-3/8-16 x 1 1/2 HHCS GR8; 3/8-16 x 1 1/2 HHCS GR8 17 BOP-RMS18; Pontiac 3.00" Main DUAL LIP Viton 1 Piece Rear Main Seal 18 LPI-1P9001; Camshaft Thrust Plate (high load aluminum nickel bronze material)”
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Will Rivera '69 Firebird, 400/461, 290 Eddy D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears '69 LeMans Vert, XS 350, #47 heads, TH400, 10 Bolt 3.23 gears, work in progress ‘66 Lemans, 455, 310 KRE D-Ports, HR 236/245, TH400, GV OD, 12 bolt 3.73 gears - see it here: https://youtu.be/RP_s1wJKm_Y?si=K0NZxoTyaGcj8Dcb |
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#16
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Assembly began today
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468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
| The Following 3 Users Say Thank You to 64speed For This Useful Post: | ||
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#17
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Hope all goes well. Get her back on the road where she belongs.
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#18
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Excellent!
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Will Rivera '69 Firebird, 400/461, 290 Eddy D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears '69 LeMans Vert, XS 350, #47 heads, TH400, 10 Bolt 3.23 gears, work in progress ‘66 Lemans, 455, 310 KRE D-Ports, HR 236/245, TH400, GV OD, 12 bolt 3.73 gears - see it here: https://youtu.be/RP_s1wJKm_Y?si=K0NZxoTyaGcj8Dcb |
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#19
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Got my CDI box mounted. The wires don’t look that bad when the engines in and they are all hooked up in looms. I am gonna be back on the road as soon as I can get some help.
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468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
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#20
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Got the engine back today. Dont know when I will be able to get it put in. Hopefully in a week or two.
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468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
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