|
04-13-2019, 05:47 PM | #1 |
VIP Member
Join Date: Oct 2008
Posts: 2,114
Likes: 1,078
Liked 180 Times in 110 Posts
|
350/255 Chevy
Can you run Super stock cam in a block built for stock. ?
|
04-13-2019, 07:15 PM | #2 |
Veteran Member
Join Date: Mar 2005
Location: Sand Springs, OK
Posts: 8,132
Likes: 896
Liked 389 Times in 168 Posts
|
Re: 350/255 Chevy
You can get a Super Stock cam ground for stock diameter cam bearings, so I don't see why not. I assume Stockers use Stock diameter cam bearings? Heck, maybe not. You can have a Super Stock cam made fit any size cam bearings.
__________________
Ed Wright 4156 SS/JA |
Liked |
04-14-2019, 09:05 AM | #3 |
Member
Join Date: Sep 2009
Posts: 136
Likes: 78
Liked 70 Times in 39 Posts
|
Re: 350/255 Chevy
Please give us more information Dan.
You have access to a solid roller out of a 350/255 engine? Are you trying to run said camshaft in Stock Eliminator? Like Ed said, if it has stock diameter journals, not big block, not metric, it should go in the block and rotate. I would expect it to have much more lift and duration than a stock(er) cam. What will you do for valve springs? Lifters? Rocker Arms? What about piston to valve clearance? Will it fit? Maybe. Will it work? You have to cover the bases. |
Liked |
04-14-2019, 09:27 AM | #4 |
Veteran Member
Join Date: Mar 2005
Location: Sand Springs, OK
Posts: 8,132
Likes: 896
Liked 389 Times in 168 Posts
|
Re: 350/255 Chevy
I would also be concerned about valve-to-piston clearance. My pistons look like a horse stepped on them.
__________________
Ed Wright 4156 SS/JA |
Liked |
04-14-2019, 10:17 AM | #5 | |
VIP Member
Join Date: Oct 2008
Posts: 2,114
Likes: 1,078
Liked 180 Times in 110 Posts
|
Re: 350/255 Chevy
Quote:
I have a Budd Rowe built Stocker engine been sitting around a while wrapped up. Has Pink Rods, Forged Pistons, 2 Bolt mains. Building a 1969 Impala for Stock. Another racer suggested since it needs modern upgrades consider building a Super Stock engine. Add a SS type cam, better valve train and Intake. Does not have to be a world be a world beater but a reliable runner. Stocker to SS. Is it just a cam and intake change? In Stock Solid Lifters and Roller Rockers are allowed. Replacing with Roller Lifters and Cam should be straight forward. Correct? D |
|
04-14-2019, 10:38 AM | #6 |
Veteran Member
Join Date: Mar 2005
Location: Sand Springs, OK
Posts: 8,132
Likes: 896
Liked 389 Times in 168 Posts
|
Re: 350/255 Chevy
Daniel, many of us have a lot of money in our heads & Intake manifolds. Super Stock rules are much different there. It won't be very fast with Stocker heads & Intake.
__________________
Ed Wright 4156 SS/JA |
Liked |
04-14-2019, 12:16 PM | #7 |
VIP Member
Join Date: Apr 2002
Location: Coarsegold, CA
Posts: 1,017
Likes: 57
Liked 321 Times in 101 Posts
|
Re: 350/255 Chevy
Dan,
#1....Join NHRA #2.....Get NHRA rulebook. #3.....Read NHRA rulebook
__________________
Bob Mulry 7516 STK A & M Motorsports |
Liked |
04-14-2019, 12:26 PM | #8 |
Member
Join Date: Sep 2009
Posts: 136
Likes: 78
Liked 70 Times in 39 Posts
|
Re: 350/255 Chevy
Sounds like SS/LA? If so, not an easy index in my opinion.
Tough to do with "stock" heads. I attempted a set of "budget"/non welded 441 heads once. I still needed long valves and shaft rockers. What rocker ratio is your cam designed for? Shaft rockers might be your only option. I like your idea. If you have a bunch of upgrades to do for Stock, explore your options with a few more upgrades. You're never going to set the world on fire, but you need to run the index and avoid heads-up runs. Can you do that? |
Liked |
04-14-2019, 12:49 PM | #9 | |
VIP Member
Join Date: Oct 2008
Posts: 2,114
Likes: 1,078
Liked 180 Times in 110 Posts
|
Re: 350/255 Chevy
Quote:
Been an NHRA member since 1970. In SS car can fall in L, M or N. Know it can be a K/SA maybe a J/SA Figured Shaft Roller for stability. Would confer with John at Bullet Cam what would be best parts. Just did not want to carve up a set of 441 heads. They are not as available as in the past. Hoping well prepared Stocker heads would be compatible enough. Can a 2 bolt main block prepared for stock live in a Super Stock Engine. Or do you need an aftermarket block and just start over.. D |
|
04-14-2019, 01:19 PM | #10 |
VIP Member
Join Date: Jun 2007
Location: Northern New Jersey suburbs
Posts: 2,275
Likes: 25
Liked 510 Times in 200 Posts
|
Re: 350/255 Chevy
The Stocker pistons will not have valve notches that would work with a SS type roller cam. Not even close.
__________________
Rich Biebel S/C 1479 |
Liked |
|
|