[Blindside6891]

My dad passed away a month after he bought this but it says 64 GTO but has a custom 5 speed with 4 wheel disk brakes. 389, just got the manifold for the trip power

[Blindside6891]

If anyone has any good links to decently priced carburetor parts , I would be be very appreciative as they are hard to find without $$$

[Blindside6891]

[Got the same one]

[b-man]

Originally Posted by Blindside6891

My dad passed away a month after he bought this but it says 64 GTO but has a custom 5 speed with 4 wheel disk brakes. 389, just got the manifold for the trip power

That intake pictured is not a 1964, it’s a 1957 or 1958 that won’t fit your 1964 heads.

Note the 3 small flanges, only those earliest of Tri-Power intakes used the small body Rochester carbs for all 3. The 1959 - 1965 intakes use the small center carb and the large base outer carbs.

Thread that helps identify different year Tri-Power intakes:

https://forums.maxperformanceinc.com...d.php?t=786314

[Blindside6891]

Originally Posted by Blindside6891

My dad passed away a month after he bought this but it says 64 GTO but has a custom 5 speed with 4 wheel disk brakes. 389, just got the manifold for the trip power

So I guess my next question I guess would be, would it work to replace and match the heads or should I just get the original 64 389 intake manifold. Thanks b man

[Blindside6891]

Originally Posted by b-man

That intake pictured is not a 1964, it’s a 1957 or 1958 that won’t fit your 1964 heads.

Note the 3 small flanges, only those earliest of Tri-Power intakes used the small body Rochester carbs for all 3. The 1959 - 1965 intakes use the small center carb and the large base outer carbs..

Thread that helps identify different year Tri-Power intakes:

https://forums.maxperformanceinc.com...d.php?t=786314

So I guess my next question I guess would be, would it work to replace and match the heads or should I just get the original 64 389 intake manifold. Thanks b man

[b-man]

You definitely need to find a 1964 intake.

That old intake you have matches up to inferior early heads that were on engines that had a lot of differences I don’t want to get into.

Suffice it to say you’re going to need a 1964 intake, assuming the engine is still a 1964. By now a lot of them have later engines and heads that only fit 1965 and up intakes so make sure what heads you have. You can identify the heads by the casting numbers on the two center exhaust ports.

1964 GTO engines all came with 9770716 heads, pictured below.

After 1964 the intake manifold bolt pattern and water crossover design changed. 1961 - 1964 intakes will interchange however only 1964 intakes had a high rise design, they are unique.

[Blindside6891]

Originally Posted by b-man

You definitely need to find a 1964 intake.

That old intake you have matches up to inferior early heads that were on engines that had a lot of differences I don’t want to get into.

Suffice it to say you’re going to need a 1964 intake, assuming the engine is still a 1964. By now a lot of them have later engines and heads that only fit 1965 and up intakes so make sure what heads you have. You can identify the heads by the casting numbers on the two center exhaust ports.

1964 GTO engines all came with 9770716 heads.

Thank you as you saved me a lot of trouble.

[Blindside6891]

Originally Posted by b-man

You definitely need to find a 1964 intake.

That old intake you have matches up to inferior early heads that were on engines that had a lot of differences I don’t want to get into.

Suffice it to say you’re going to need a 1964 intake, assuming the engine is still a 1964. By now a lot of them have later engines and heads that only fit 1965 and up intakes so make sure what heads you have. You can identify the heads by the casting numbers on the two center exhaust ports.

1964 GTO engines all came with 9770716 heads.

If you see someone on here that may want to trade let me know otherwise I'll continue the search

[b-man]

Almost nobody is looking for the early intakes like you have. Due to the low demand they’re selling for cheap, like most of the 1963 and earlier intakes.

1964 intakes are in less demand than the 1965 - 1966 intakes because the 1965 and later intakes fit all 1965 and later heads including aftermarket aluminum heads.

Start your search, after you identify your heads.

[b-man]

My 1964 Le Mans convertible, finally on the road after many years. Might never be finished but it will get driven. As you can see it has a GTO hood and some of the GTO emblems on it.

Still need to get the factory air conditioning operational along with the heating but other than that everything is working including the factory power windows.

Powered by a 1964 421 HO (421 built by Mick Batson, Tri-Power restored by Dick Boneske) backed by a stock TH350 (rebuilt by Ray Reyes) and a 13” Continental converter.

[giles]

As long as we are posting pictures of ‘64 convertibles here is another. Basically done except for some minor odds and ends.

[b-man]

My ‘64 Tempest Sport Coupe.

Waiting for attention, viewed through the rear side window of my ‘57 VW project in my crowded garage.

[Brad_bb]

Cool. First thing I notice is the fender mounted mirror. It's rectangular. If memory serves, I think mine (NOS) is round. Mine is the optional remote control mirror with a cable going to the interior to control it's positioning. Does yours have a cable or is it manual adjust? Also, here is the mounting location for mine. It does not appear to be the same. I wonder if yours is factor or an aftermarket?
Are you going to make a GTO clone?

[b-man]

That rectangular mirror was already on the car when I bought it in 1996. Just an aftermarket mirror of some sort. I have a couple of decent round remote mirrors with cables to choose from that I’ll use on my Le Mans convertible as it was originally equipped with one.

Staying a low-line Tempest for as long as I own it, originally a 6-cylinder 2-speed automatic car. Still wearing most of the original white paint with a few body shop touch ups here and there in varying shades.

I really don’t care about perfection, I’m just happy to have them running and looking the way I want.

[giles]

Originally Posted by b-man

That rectangular mirror was already on the car when I bought it in 1996. Just an aftermarket mirror of some sort.

That was one of the first things I noticed! My Tempest originally had the remote mirror, but I’m just not a fan of the fender mount. The mirror image is too small and the placement is not appealing IMO. I put a standard mirror on in its place. Here is the “barn find” shot of the Tempest in my wife’s grandmother’s garage in ‘03.

[Little63Indian]

Originally Posted by b-man

You definitely need to find a 1964 intake.

That old intake you have matches up to inferior early heads that were on engines that had a lot of differences I don’t want to get into.

Suffice it to say you’re going to need a 1964 intake, assuming the engine is still a 1964. By now a lot of them have later engines and heads that only fit 1965 and up intakes so make sure what heads you have. You can identify the heads by the casting numbers on the two center exhaust ports.

1964 GTO engines all came with 9770716 heads, pictured below.

After 1964 the intake manifold bolt pattern and water crossover design changed. 1961 - 1964 intakes will interchange however only 1964 intakes had a high rise design, they are unique.

You mention the '64 GTO heads. Are they better than the stock '63 Lemans 326 heads? I have an early 4bbl intake (9770274) to replace my stock 2bbl intake and a 3300SA Carter 4bbl. I still have the rope drive so don't need to over power it.

[Dick Boneske]

The ‘64 GTO heads have larger valves than the 326?heads. Unless you’re racing your ‘63, there is no reason to change your original heads.

The ‘64 GTO heads lubricated the rocker arms through the pushrods. The ‘63 326 heads used the rocker arm studs to supply oil to the rocker arms. If you switch to ‘64 GTO heads, the rocker arms from your ‘63 heads would not work, since they don’t have oil holes above the pushrods.

[b-man]

Originally Posted by Little63Indian

You mention the '64 GTO heads. Are they better than the stock '63 Lemans 326 heads? I have an early 4bbl intake (9770274) to replace my stock 2bbl intake and a 3300SA Carter 4bbl. I still have the rope drive so don't need to over power it.

The 1964 GTO 9770716 heads were also used on big Pontiac 389 Tri-Power engines and 421 HO engines in ‘63 & ‘64. They had better ports and bigger 1.92”/1.66” valves. They were also the first non-Super Duty heads to oil the rocker through the pushrods, instead of oiling passages in the heads and subsequently the rocker studs.

The common passenger car 326 and 389 heads up through 1964 had smaller ports and 1.88”/1.60” valves and still used stud oiled rockers, a feature which was phased out by 1965 for all Pontiac heads.