OK, Stocker "valve jobs". - Page 6

pmrphil · 06-08-2024, 10:36 AM

Quote:

Originally Posted by Jeff Stout

Converting to a canted valve ok if angled towards a port is needed? May only be 2 degrees worth.

No, ONE degree is all that's allowed. Wait until you try to get the rocker to comply

.

Larry Hill · 06-09-2024, 08:03 AM

If you installed the larger screw in studs to help stop some of the lift loss from deflection, a racer could regain the correct rocker valve angel relationship. I think

pmrphil · 06-09-2024, 02:26 PM

Quote:

Originally Posted by Larry Hill

If you installed the larger screw in studs to help stop some of the lift loss from deflection, a racer could regain the correct rocker valve angel relationship. I think

Not if you're trying to "cant" the valve - then the stud would have to also have the corresponding "cant". Think big block Chevy, the valves are angled AND canted.

ProfessorRock · 06-09-2024, 05:36 PM

This is a great post Billy. But i think most racers have no clue what we are talking about. Going to reply ,so not directed at anyone.

goinbroke2 · 06-09-2024, 07:03 PM

This started because i didn’t have a clue, either! Lol!

Larry Hill · 06-09-2024, 07:09 PM

Well aware of BBC angel a cant of the valves. Spent a ton of money on a 68 427/ 400 project with 290 small plug heads. The car we got was from Wayne Shaw was a 69 350/ 350 car. I sold to John Livingston and he made the Tennessee Thunder car. NHRA made him change doors and put the key on the dash.
We enlarged the hole with an end mill to keep the tap drill from following the path of least resistance. And then spot faced the seat of the screw in stud.

Dan Bennett · 06-10-2024, 01:50 PM

[QUOTE=Larry Hill;698408] ...NHRA made him change doors and put the key on the dash....
/QUOTE]

Flash of nostalgia for when rules mattered and a car had to be correct for the year. Little things like a pushbutton door latch and location of the ignition switch were no doubt a total pita but before "close enough" grey areas. No, can't think of a single performance advantage but somehow I liked it better that way.

Rory McNeil · 06-12-2024, 10:17 AM

Certainly must have been far fewer first gen 350 and B B powered, as well as automatic transmission equipped "Z/28" Camaros running in Stock and Super Stock back in the "old days". I still remember when a buddy took his 69 Camaro 427/425 Super Stocker down to Pomona, and the tech guy made him remove the SS emblem between the tail lights, since that was a COPO combination. Or when if you wanted to run a 69 Mustang 428 CJ car as a GT rather than a Mach 1, you needed to use the GT only gas cap. Things have certainly changed!

06-09-2024, 08:03 AM	#52
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,473 Likes: 1,765 Liked 10,150 Times in 2,103 Posts	Re: OK, Stocker "valve jobs". If you installed the larger screw in studs to help stop some of the lift loss from deflection, a racer could regain the correct rocker valve angel relationship. I think __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

06-09-2024, 05:36 PM	#54
ProfessorRock Junior Member Join Date: Aug 2022 Location: PHXarea. +Ohio Posts: 57 Likes: 10 Liked 36 Times in 16 Posts	Re: OK, Stocker "valve jobs". This is a great post Billy. But i think most racers have no clue what we are talking about. Going to reply ,so not directed at anyone. __________________ Rocketmancoatings

06-09-2024, 07:03 PM	#55
goinbroke2 Senior Member Join Date: Mar 2002 Location: NS CANADA Posts: 773 Likes: 892 Liked 218 Times in 87 Posts	Re: OK, Stocker "valve jobs". This started because i didn’t have a clue, either! Lol! __________________ Jim Miller 103 U/SA Last edited by goinbroke2; 06-09-2024 at 07:06 PM.

06-09-2024, 07:09 PM	#56
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,473 Likes: 1,765 Liked 10,150 Times in 2,103 Posts	Re: OK, Stocker "valve jobs". Well aware of BBC angel a cant of the valves. Spent a ton of money on a 68 427/ 400 project with 290 small plug heads. The car we got was from Wayne Shaw was a 69 350/ 350 car. I sold to John Livingston and he made the Tennessee Thunder car. NHRA made him change doors and put the key on the dash. We enlarged the hole with an end mill to keep the tap drill from following the path of least resistance. And then spot faced the seat of the screw in stud. __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

06-10-2024, 01:50 PM	#57
Dan Bennett Member Join Date: Jun 2007 Posts: 403 Likes: 703 Liked 485 Times in 112 Posts	Re: OK, Stocker "valve jobs". [QUOTE=Larry Hill;698408] ...NHRA made him change doors and put the key on the dash.... /QUOTE] Flash of nostalgia for when rules mattered and a car had to be correct for the year. Little things like a pushbutton door latch and location of the ignition switch were no doubt a total pita but before "close enough" grey areas. No, can't think of a single performance advantage but somehow I liked it better that way.

06-12-2024, 10:17 AM	#58
Rory McNeil VIP Member Join Date: Jun 2007 Location: from Vancouver BC Canada, now in Nova Scotia Posts: 1,270 Likes: 256 Liked 973 Times in 272 Posts	Re: OK, Stocker "valve jobs". Certainly must have been far fewer first gen 350 and B B powered, as well as automatic transmission equipped "Z/28" Camaros running in Stock and Super Stock back in the "old days". I still remember when a buddy took his 69 Camaro 427/425 Super Stocker down to Pomona, and the tech guy made him remove the SS emblem between the tail lights, since that was a COPO combination. Or when if you wanted to run a 69 Mustang 428 CJ car as a GT rather than a Mach 1, you needed to use the GT only gas cap. Things have certainly changed! __________________ NHRA 6390 STK M/S 85 Mustang