View unanswered posts | View active topics It is currently Sat Mar 23, 2019 6:52 am



Reply to topic  [ 10 posts ] 
 Roller cam, what will I need 
Author Message
CCFBG Club Member
User avatar

Joined: Sat Mar 26, 2005 2:28 am
Posts: 709
Location: Kitchener, On
Reply with quote
Post Roller cam, what will I need
As the topic says, I am looking at a performance cam From Speed-Pro. The specs on the cam are:
Duration 306/306
Duration @ .050 Intake/Exhaust 230/230
Lift 480/480 LSA 108
Good from 2500-6000 RPM
This is what the guy told me over the phone. He had it in a motor for his boat but it proved to be too much. He is asking $200 for it, said he paid $580 for it and it has been used for about 3 hours. He also said that as I already have a roller motor, that I can use the stock lifters.
So my thinking was to put this into my now carbed 1987 L98. So I have an Edelbrock Performer intake, Holley 650, Accel coil, K&N 3"filter w/ Xtreme-Flo lid, holley headers and Dynomax cat back. The car is a 700R and stock 308 gears, but am thinking of getting a 3.27 posi.
The engine block is still stock as are the heads. I was told that the engine has about 18,000K's on it since rebuilt.
So with that info, what else would I be looking at to install this cam? Do I need new springs? Will my lifters be ok, what convertor should I be looking at, or will the stock one be sufficient? Any info will be appreciated...

_________________
1990 GTA
1987 TA (gone but not forgotten)
1976 TA (project)
1995 Z -28 Camaro
1982 Firebird ( my 1st )


Mon Jan 09, 2012 1:00 pm
Profile
CCFBG Club Member
User avatar

Joined: Sat Mar 19, 2005 8:07 pm
Posts: 4327
Location: The big town
Reply with quote
Post Re: Roller cam, what will I need
first of all was the cam from a roller block or non roller, 2 different monsters right there.

_________________
Image

9.06@155 mph, small block pump gas with 3.42's bird
8.14@166 mph, big block on 250 shot monza


Mon Jan 09, 2012 7:03 pm
Profile
Forum Moderator
User avatar

Joined: Thu Mar 17, 2005 10:28 pm
Posts: 5899
Location: Center of the Universe
Reply with quote
Post Re: Roller cam, what will I need
Always a good Idea for new Springs 8)

_________________
http://forums.kwmuscle.com/viewtopic.php?t=4238&start=0 Laughing at dumb dumbs since Oct 03/11
Alex IROC Z-28 wrote:
Ohhh lord....here we go..... Hawk one time kicked Chuck Noris ass so bad that Chuck Noris filed for Workers Comp......

Image


Mon Jan 09, 2012 7:14 pm
Profile
CCFBG Club Member
User avatar

Joined: Sat Mar 26, 2005 2:28 am
Posts: 709
Location: Kitchener, On
Reply with quote
Post Re: Roller cam, what will I need
Mr Bastard wrote:
first of all was the cam from a roller block or non roller, 2 different monsters right there.

According to the guy, it is for a 1987-92 SBC, so I would have to guess that it would be for a roller block. He says it would work perfectly with my block.

_________________
1990 GTA
1987 TA (gone but not forgotten)
1976 TA (project)
1995 Z -28 Camaro
1982 Firebird ( my 1st )


Mon Jan 09, 2012 7:25 pm
Profile
CCFBG Club Member
User avatar

Joined: Tue Feb 28, 2006 1:42 pm
Posts: 2739
Location: Mississauga
Reply with quote
Post Re: Roller cam, what will I need
Kevs87TA wrote:
Mr Bastard wrote:
first of all was the cam from a roller block or non roller, 2 different monsters right there.

According to the guy, it is for a 1987-92 SBC, so I would have to guess that it would be for a roller block. He says it would work perfectly with my block.


Yes technically it would work perfectly fine in your L98 as long as you changed the valve springs.

What else you need depends on what youre willing to spend.

First of all, a 230/230 cam on a stock L98 might be on the bigger side of things (even with a carb). It will work okay but to really utilize the cam your heads will need some port work.

Yes you can reuse your roller lifters.

If the cam is a 'retro roller' version, it can still be used on your block however you will need to use a cam-button and you will need to change your timing chain setup to a retro-roller style that doesnt use the cam retainer plate like the OE roller setup has.


The problem is a cam like that with 3.08 gears will be horrendous. It wont be much better with 3.27 gears either. I wouldn't even think twice about this, your car will NEED 3.73 gears being an auto and NOT having a TPI on the top which means the engine can breathe some real RPM's. 3.45 gears might work but will still be border line, but 3.73s or whatever the 9-bolt equivalent is will be perfect.

Good luck!

_________________
2012 Camaro 2SS/RS - LS3/TR6060: BTR Cam, Long Tubes, 3" Catback, UDP, CAI Intake, Air Scoop, 3.91 Gears, Poly Diff Bushings, Toe Arms, Poly Subframe, Poly Radius-Rod bushings, ZL1 Suede Shifter, ZL1 Mounts, Arun Tuned - 475rwhp 443rwtq
11.97 @ 116 w/ 1.85 60'

Listen To Song Of My People!
Image


Tue Jan 10, 2012 3:12 am
Profile WWW
Forum User

Joined: Wed Jul 12, 2006 10:13 am
Posts: 90
Location: London, ON
Reply with quote
Post Re: Roller cam, what will I need
I'm no cam expert, but the profile on that cam seems pretty odd. Those specs are the same that you can get in an old fashioned $79 Summit flat tappet cam. I understand the ramps will be different, and the valves will open alot quicker being a roller cam, but why not look for something with less duration and have a more streetable car? You can get an LT4 Hot cam or cc503 and take the dowel out and would probably work better with your current setup.

_________________
Kevin V
1987 Camaro IROC-Z


Tue Jan 10, 2012 9:11 am
Profile
CCFBG Club Member
User avatar

Joined: Fri Mar 03, 2006 8:52 pm
Posts: 1164
Location: Drayton
Reply with quote
Post Re: Roller cam, what will I need
You're def gonna want a stall converter with that cam

_________________
Image


Tue Jan 10, 2012 1:21 pm
Profile
Forum User

Joined: Thu Sep 03, 2009 12:21 pm
Posts: 134
Location: London
Reply with quote
Post Re: Roller cam, what will I need
From my understanding a cam with a 230/230 duration your gonna want to have a compression ratio of 10.5 or better.

_________________
Image
1988 GTA
1989 20th Anniversary TTA


Thu Jan 12, 2012 7:47 pm
Profile
Forum Moderator
User avatar

Joined: Thu Mar 17, 2005 10:28 pm
Posts: 5899
Location: Center of the Universe
Reply with quote
Post Re: Roller cam, what will I need
too big

specs sound more like flat tappet then rollor


Thu Jan 12, 2012 7:52 pm
Profile
CCFBG Club Member
User avatar

Joined: Sat Mar 26, 2005 2:28 am
Posts: 709
Location: Kitchener, On
Reply with quote
Post Re: Roller cam, what will I need
Thanks for the info guys, I am going to pass on this cam. Swapping in a cam like this is too troublesome for my liking. I saw the ad and liked the price, but the price will go much higher with the work involved making it work properly.

_________________
1990 GTA
1987 TA (gone but not forgotten)
1976 TA (project)
1995 Z -28 Camaro
1982 Firebird ( my 1st )


Thu Jan 12, 2012 7:54 pm
Profile
Display posts from previous:  Sort by  
Reply to topic   [ 10 posts ] 

Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group.
Designed by STSoftware for PTF.