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Forum: THE LOBBY Yesterday, 08:03 PM
Replies: 5
Views: 251
Posted By jwcfbd
Car tire stone cleaning too. gotta love...

Car tire stone cleaning too. gotta love google image search. yes I cheated. LOL
...
Forum: Pontiac - Street Yesterday, 05:23 PM
Replies: 441
Views: 98,595
Posted By Stan65
FrankieTA, I will post a picture again of...

FrankieTA,

I will post a picture again of what I measured on my 73 455 block with my cam, and a copy of my cam card.

I do not believe a custom base circle is necessary unless your block has...
Forum: Pontiac - Street 01-18-2025, 06:58 PM
Replies: 25
Views: 832
Posted By b-man
Your 4” stroked 400 with 670 heads and HO exhaust...

Your 4” stroked 400 with 670 heads and HO exhaust manifolds is essentially a stock 1967 428 HO.

Stick the manual trans 390 hp 428 HO cam in it.

Use the factory 068 and spice it up with some...
Forum: Pontiac - Street 01-18-2025, 02:30 PM
Replies: 25
Views: 832
Posted By steve25
Sorry. I thought you did. There’s been so many...

Sorry. I thought you did.
There’s been so many of them as of late!

Here’s some recommendations that will not fail you duration wise as long as you have a minimum 9 to 1 compression a long with...
Forum: Pontiac - Street 01-18-2025, 02:12 PM
Replies: 25
Views: 832
Posted By Jay S
That is a COOL photo of your car! ...

That is a COOL photo of your car!

https://www.howardscams.com/hydraulic-roller-47-swap-camshaft-1955-1981-pontiac-265-455-2000-6200-howards-cams-414345-12
Forum: Pontiac - Street 01-18-2025, 01:20 PM
Replies: 25
Views: 832
Posted By Bruce Meyer
Summit 2802 for HFT for HR none recommended. For...

Summit 2802 for HFT for HR none recommended. For springs you need to know installed height to properly pick. When you have that info contact Butler Performance and they will recommend a set
Forum: 64-65 GTO Tempest & LeMans TECH 01-18-2025, 10:00 AM
Replies: 13
Views: 998
Posted By tempest1964
From what I have read on Surf64’s intro and this...

From what I have read on Surf64’s intro and this thread, he’s wanting to return the car to its original form as a Tempest. To Surf64 I would say, the good thing is you’re in the right spot for good...
Forum: Pontiac - Street 01-18-2025, 08:07 AM
Replies: 20
Views: 1,094
Posted By Cliff R
Last time I checked you can still buy that cam...

Last time I checked you can still buy that cam from Rock Auto and a couple other sources, Melling SPC-8, USA made. Rumor is that they will be discontinued soon along with most of the other flat...
Forum: Pontiac - Street 01-16-2025, 01:38 PM
Replies: 441
Views: 98,595
Posted By Stan65
It can’t slip out because the limited clearances...

It can’t slip out because the limited clearances doesn’t allow the bolt to move more than a couple degrees when the bone is held in place by the lifters.

As far as clearance, The lobe can’t be...
Forum: National Events 01-14-2025, 06:05 PM
Replies: 12
Views: 1,777
Posted By Held for Ransom
Yes. A letter was included in my pre-registered...

Yes. A letter was included in my pre-registered packet.

Looks like the little GTO won't be driving around anymore.
Forum: Pontiac - Street 01-11-2025, 01:43 AM
Replies: 27
Views: 1,666
Posted By Skippy597
Hey Masaki, can I offer some advice. It appears...

Hey Masaki, can I offer some advice. It appears you are a bit overwhelmed but very excited at building your car which is to be expected when your 16 with a bitching car. But it's also very easy to...
Forum: Pontiac - Street 12-29-2024, 11:15 PM
Replies: 27
Views: 688
Posted By Formulas
What your looking at is next level pistons above...

What your looking at is next level pistons above stock cast or aftermarket cast there is better choices and there is worse choices.

it looks like very low miles or maybe not even started as...
Forum: Pontiac - Street 12-29-2024, 10:47 PM
Replies: 27
Views: 688
Posted By b-man
TRW, Speed Pro, Sealed Power, now Rebuilder’s...

TRW, Speed Pro, Sealed Power, now Rebuilder’s Choice.

Same old heavy forged piston with pressed-pin, new skirt coating and logo

11cc 428 version.
Forum: Pontiac - Street 12-29-2024, 02:33 PM
Replies: 27
Views: 688
Posted By steve25
The thickness of the skirt and the area of the...

The thickness of the skirt and the area of the balancing pads are a giveaway also.
Forum: Pontiac - Street 12-29-2024, 02:29 PM
Replies: 27
Views: 688
Posted By Formulas
You can just tell by the shape after you have...

You can just tell by the shape after you have seen enough different brands ..... There is alot of pistons that are very similar but nothing comes close to the TRW / Speed Pro design .. A big...
Forum: Pontiac - Street 12-27-2024, 03:30 PM
Replies: 15
Views: 985
Posted By PAUL K
Do folks realize "stroker kits' are individual...

Do folks realize "stroker kits' are individual crank, rods and pistons that function properly together and come with rings and bearings.

Each part can be purchased separately and from different...
Forum: THE LOBBY 12-26-2024, 06:19 PM
Replies: 15
Views: 896
Posted By mgarblik
Arnie "the farmer" Beswick Day

Today in the mail I was happy to receive my annual Christmas card from Arnie Beswick. I am pretty sure I have all 30 of his cards starting in 1994 when he sent me the first one. Up until this year...
Forum: Pontiac - Street 12-23-2024, 12:17 PM
Replies: 101
Views: 3,742
Posted By PontiacMatt72
There are plenty of nay-sayers, as well as...

There are plenty of nay-sayers, as well as success and failure stories, for either option (roller or flat tappet).

For whatever my opinion is worth, I prefer a roller. Solid or hydraulic. For...
Forum: Pontiac - Street 12-23-2024, 09:48 AM
Replies: 101
Views: 3,742
Posted By Jay S
You all have a Merry Christmas! You can...

You all have a Merry Christmas!

You can always call or text me if you find yourself in a corner with a question. I enjoy power terrain stuff.. If I don’t know the answer I may at least know...
Forum: Pontiac - Street 12-23-2024, 08:55 AM
Replies: 101
Views: 3,742
Posted By PAUL K
Sorry someone had to address the...

Sorry someone had to address the misinformation/disinformation and cheap fakes ;)

Seasons Greetings to you and your family!
Forum: Pontiac - Street 12-22-2024, 05:38 PM
Replies: 35
Views: 1,258
Posted By geeteeohguy
The reason you want to use the old-fashioned...

The reason you want to use the old-fashioned non-detergent oil or modern break in oil is because it lacks detergents. Normal oil has high detergent---which dissolves the break in lube off of the cam...
Forum: Pontiac - Street 12-20-2024, 11:07 PM
Replies: 62
Views: 2,567
Posted By Jay S
That would be fine. 402.682.1663

That would be fine.
402.682.1663
Forum: Pontiac - Street 12-20-2024, 07:46 PM
Replies: 62
Views: 2,567
Posted By Jay S
9.68 would be higher than those smaller cams...

9.68 would be higher than those smaller cams would want.

I ran the numbers with a 28cc and came up with 9.25, but I added in 1cc for cylinder scallops on to the 72 cc heads. Ball park guess yet.
Forum: Pontiac - Street 12-20-2024, 07:07 PM
Replies: 62
Views: 2,567
Posted By b-man
9.68:1 with iron heads and a moderate duration...

9.68:1 with iron heads and a moderate duration street cam is pushing the limits on 91 octane.

Disclaimer: I’m not a super tuner and I like to leave myself some breathing room.

My very...
Forum: Pontiac - Street 12-20-2024, 02:23 PM
Replies: 62
Views: 2,567
Posted By chiphead
Did you measure final chamber size before you...

Did you measure final chamber size before you ordered pistons? I made that mistake on my original 400. Thought I had 72cc 670s, so I ordered 20 cc dish pistons for 9.2 compression with 3.75 stroke....
Showing results 1 to 25 of 207

 
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