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Forum: 70-73 Firebird & TA TECH Today, 06:07 PM
Replies: 433
Views: 105,082
Posted By HWYSTR455
I did a 'square' 455 once, .060 over, got...

I did a 'square' 455 once, .060 over, got considerable hard/abusive miles out of it, would have to check my notes, but sure it went over 50k miles.

The factory crank broke, and yes, it was fully...
Forum: Pontiac - Street Today, 05:47 PM
Replies: 5
Views: 117
Posted By Cliff R
1969 #46's have the small valves and 45 degree...

1969 #46's have the small valves and 45 degree intake seats. They are "sleeper" heads. Without even touching the ports with a grinder or sanding roll we stuffed a set on a 455 shortblock when the...
Forum: Pontiac - Street Today, 04:26 PM
Replies: 11
Views: 200
Posted By JSchmitz
Yeah, it'll make your plugs black!!! :pound:

Yeah, it'll make your plugs black!!! :pound:
Forum: Performance Parts For Sale/Wanted Today, 01:44 PM
Replies: 15
Views: 840
Posted By 73 TRANSAM
Parts for sale

Timing cover and pump is spoken for but if something change. I’ll let u know. Thanks for the interest.
Forum: 70-73 Firebird & TA TECH Today, 01:16 PM
Replies: 433
Views: 105,082
Posted By SD455DJ
The tops of the pistons look fine, just carboned...

The tops of the pistons look fine, just carboned up a bit. All the ring lands are whole, nothing broken to the naked eye...so far. I don't think that it experienced much, if any, detonation since...
Forum: 70-73 Firebird & TA TECH Today, 12:57 PM
Replies: 3
Views: 74
Posted By SD455DJ
Agreed with 78w72. Dennis

Agreed with 78w72.

Dennis
Forum: Pontiac - Street Today, 12:38 PM
Replies: 5
Views: 142
Posted By HWYSTR455
Just a suggestion, what I do is install 2 studs...

Just a suggestion, what I do is install 2 studs and then slide the heads on, then screw in the rest of the studs.

It's easier to get the gasket and head down to the deck that way.


.
Forum: Pontiac - Street Today, 11:47 AM
Replies: 352
Views: 35,226
Posted By Verdoro 68
Thanks! I learned a ton during this build and am...

Thanks! I learned a ton during this build and am really glad I did it myself rather than handing it over to a shop.

Since I updated this thread, I pulled the engine two more times to fix the rear...
Forum: Pontiac - Street Today, 11:45 AM
Replies: 11
Views: 200
Posted By JSchmitz
Good point. I was assuming old school Holley....

Good point. I was assuming old school Holley. :confused:
Forum: Pontiac - Street Today, 10:20 AM
Replies: 60
Views: 2,526
Posted By Jay S
There isn’t any hurry. Not all the Champions...

There isn’t any hurry.

Not all the Champions are 2 piece. I wouldn’t be concerned about the two piece construction as much as the current quality of the manufacturing. I have used hundreds of...
Forum: 70-73 Firebird & TA TECH Today, 10:19 AM
Replies: 3
Views: 74
Posted By 78w72
Cant comment on concours resto or 100% original...

Cant comment on concours resto or 100% original paint... but Ive always used a satin black, its not too flat & not too glossy & looks very close to original mid to later 2nd gen years. Many different...
Forum: 70-73 Firebird & TA TECH Today, 10:09 AM
Replies: 433
Views: 105,082
Posted By Formulas
Crusty broken valve stem seals are not preferred...

Crusty broken valve stem seals are not preferred but they do let more oil pass reducing wear some.

BTW. stock pistons last about a miniute under detonation or preignition, i busted 2 engines...
Forum: Pontiac - Street Today, 07:14 AM
Replies: 9
Views: 187
Posted By Half-Inch Stud
Car weight, gearset ratio, and converter dia...

Car weight, gearset ratio, and converter dia please. Loose converter is suspected.
Forum: Pontiac - Street Today, 06:18 AM
Replies: 9
Views: 187
Posted By Formulajones
You supplied the torque converter so I can see...

You supplied the torque converter so I can see how that conversation is going to go.

What you describe sounds like a loose torque converter maybe one that's not as efficient as it could be.
Forum: 66-67 GTO Tempest & LeMans TECH Today, 12:08 AM
Replies: 158
Views: 9,725
Posted By 71GP76TA
Car sits right to me. Any higher.. it'll look...

Car sits right to me. Any higher.. it'll look like a field car.
Forum: 66-67 GTO Tempest & LeMans TECH Today, 12:04 AM
Replies: 158
Views: 9,725
Posted By Tedd930
Some pics and update

Confirmed the car has a 160 t stat change the old fan clutch to new style hd supposedly doesn’t need to be activated by temp. Will test tomorrow . Car was polished and cleaned up looks great for...
Forum: Pontiac - Street Yesterday, 10:27 PM
Replies: 3
Views: 112
Posted By b-man
Recent discussion regarding TH350 and various...

Recent discussion regarding TH350 and various other options when replacing the ST-300 2-speed:

https://forums.maxperformanceinc.com/forums/showthread.php?t=874055
Forum: THE LOBBY Yesterday, 09:36 PM
Replies: 9
Views: 431
Posted By johnta1
Limited slip? :eek:

Limited slip?


:eek:
Forum: THE LOBBY Yesterday, 07:58 PM
Replies: 9
Views: 431
Posted By Half-Inch Stud
Posi grip?

Posi grip?
Forum: THE LOBBY Yesterday, 07:57 PM
Replies: 9
Views: 431
Posted By jhein
OK, we've seen the rear end. Now let's see the...

OK, we've seen the rear end. Now let's see the front "bumpers".
Forum: 70-73 Firebird & TA TECH Yesterday, 07:57 PM
Replies: 433
Views: 105,082
Posted By SD455DJ
RAIII Rebuild Update

Dan tore down the YZ RAIII engine today and found it to be very clean inside from excellent care the past 54 years and that it had never been opened up before. It had factory intake manifold gaskets,...
Forum: Pontiac - Street Yesterday, 07:27 PM
Replies: 3
Views: 112
Posted By bdk1976
TH350 is pretty much the standard swap in cases...

TH350 is pretty much the standard swap in cases like this - nearly plug and play and plenty strong for a 326. Do a search on this site as it has been detailed many times over.
Forum: THE LOBBY Yesterday, 04:57 PM
Replies: 2
Views: 296
Posted By ta6point6
I had seen this on another website and thought it...

I had seen this on another website and thought it was funny but so true
https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQcmLaae3YjyIJO_7_6TCMxd-rYI4cki2tbvw&s
Forum: Pontiac - Street Yesterday, 04:18 PM
Replies: 6
Views: 180
Posted By form74
Issue fixed bracket worked Thanks Paul

Issue fixed bracket worked

Thanks Paul
Forum: 70-73 Firebird & TA TECH Yesterday, 01:33 PM
Replies: 4
Views: 145
Posted By 'ol Pinion head
70 Pontiac F-body V8 pulleys & brackets are of a...

70 Pontiac F-body V8 pulleys & brackets are of a different design than '70 Pontiac A-B-G series pieces.

Besides the difference in offsets, the '70 V8 Bird 2 groove crank pulleys are VERY similar...
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