We are currently running on the new domain and server: www.Speed-Talk.com

IMPORTANT: Update your bookmarks to https://www.speed-talk.com/forum/
(Right-click the URL and select "Bookmark this link")

1978 454 solid cam, all street..

General engine tech -- Drag Racing to Circle Track

Moderator: Team

1980RS
New Member
New Member
Posts: 25
Joined: Thu Oct 13, 2016 10:03 am
Location:

Re: 1978 454 solid cam, all street..

Post by 1980RS » Fri Jan 10, 2020 6:42 pm

Comp Cams BBC 282S
.651 lift
236° Duration @ .050
110°LCA
Great street cam, ran high 11's in my Camaro with 7.9 comp and 236 Peanut Port heads.

Little Mouse
Pro
Pro
Posts: 457
Joined: Mon Oct 21, 2013 8:48 pm
Location:

Re: 1978 454 solid cam, all street..

Post by Little Mouse » Fri Jan 10, 2020 7:46 pm

1980RS wrote:
Fri Jan 10, 2020 6:42 pm
Comp Cams BBC 282S
.651 lift
236° Duration @ .050
110°LCA
Great street cam, ran high 11's in my Camaro with 7.9 comp and 236 Peanut Port heads.
Sounds like a nice time card, you had a 2.87 rear ?

jake197000
Pro
Pro
Posts: 428
Joined: Sun Mar 18, 2012 11:37 pm
Location:

Re: 1978 454 solid cam, all street..

Post by jake197000 » Fri Jan 10, 2020 8:27 pm

I agree,change the gear,it will beso much more fun.then put in an OD trans.

Little Mouse
Pro
Pro
Posts: 457
Joined: Mon Oct 21, 2013 8:48 pm
Location:

Re: 1978 454 solid cam, all street..

Post by Little Mouse » Sat Jan 11, 2020 12:41 am

The OP stated he wanted off idle tq and 18 inches vacuum 236 .050 not going to do either and would be a mess with 2.87 rear gears.

1980RS
New Member
New Member
Posts: 25
Joined: Thu Oct 13, 2016 10:03 am
Location:

Re: 1978 454 solid cam, all street..

Post by 1980RS » Sat Jan 11, 2020 1:38 am

I mis-stated the lift number it is .561, I had 4.10 gear in my car. The 270S comp cam is really nice on the street also if you like a nice solid cam that is not hard on parts. Best was 11.78@112mph, not a lot of HP but a whole lot of torque but was happy considering it was peanut port heads.

pitts64
Member
Member
Posts: 109
Joined: Mon Oct 15, 2007 8:00 am
Location: Pittsburgh, Pa.

Re: 1978 454 solid cam, all street..

Post by pitts64 » Sat Jan 11, 2020 9:37 am

Thanks guys...

pitts64
Member
Member
Posts: 109
Joined: Mon Oct 15, 2007 8:00 am
Location: Pittsburgh, Pa.

Re: 1978 454 solid cam, all street..

Post by pitts64 » Sat Jan 11, 2020 9:44 am

bobmc wrote:
Fri Jan 10, 2020 6:16 pm
stock cam according to Seal Power cam CS-774 193/203 at 112 deg LSA
I'm thinking these are @.050 numbers right? I'd like to know the whole specs..

Roadknee
Member
Member
Posts: 143
Joined: Sun Nov 18, 2007 9:31 pm
Location: Washington

Re: 1978 454 solid cam, all street..

Post by Roadknee » Sat Jan 11, 2020 9:54 am

mag2555 wrote:
Fri Jan 10, 2020 6:50 am


This would be the perfect time to step into the 20th century and run a Beehive or Conical valve spring while your at it!
Is there a specific spring you’d recommend?

pdq67
Guru
Guru
Posts: 8590
Joined: Thu Mar 04, 2010 8:05 pm
Location:

Re: 1978 454 solid cam, all street..

Post by pdq67 » Sat Jan 11, 2020 12:31 pm

Please read me again!!

Up its sorry CR and then install solid lifters on the cam I suggested and go!

I really wish W/P's made a cast-iron head that was a true large oval and only had a 90 or so cc chamber in it so it would be just a head change away from taking these low compression old P/U 454 engines and making them to where a decent cam can be used in them!

Then make some GOOD POWER on the CHEAP! Only real money would be for the set-up heads and a good cam!!

pdq67

User avatar
CamKing
Guru
Guru
Posts: 9278
Joined: Wed Aug 08, 2007 4:05 pm
Location: Denver, NC
Contact:

Re: 1978 454 solid cam, all street..

Post by CamKing » Sat Jan 11, 2020 12:37 pm

pitts64 wrote:
Fri Jan 10, 2020 3:55 pm
Wow 206/210 with a 110 in between.. I guess you can't tell me what the specs are.. I am very interested..
What specs do you want ?

Cam# BBCM, M64298-65302-110
256/260 @.012" (Lash Point)
236/240 @.020"
206/210 @.050"
116/120 @.020"
.298"/.302" Lobe Lift
.507"/.513" Gross Valve Lift
.019"/.020" Hot Valve Lash
110 LSA
107 ICL
Mike Jones
Jones Cam Designs

Denver, NC
jonescams@bellsouth.net
http://www.jonescams.com
Jones Cam Designs' HotPass Vendors Forum: viewforum.php?f=44
(704)489-2449

Roadknee
Member
Member
Posts: 143
Joined: Sun Nov 18, 2007 9:31 pm
Location: Washington

Re: 1978 454 solid cam, all street..

Post by Roadknee » Sat Jan 11, 2020 1:14 pm

There is nothing wrong with installing a better cam and leaving the compression where it is. There are plenty of 11 and 12 second rides running flat top open chamber big blocks. The OP is not looking to maximize the capability of his engine. His engine will run so much better with a small cam upgrade.

Tuner
Guru
Guru
Posts: 2385
Joined: Sun Apr 01, 2007 5:26 am
Location:

Re: 1978 454 solid cam, all street..

Post by Tuner » Sat Jan 11, 2020 1:35 pm

CamKing wrote:
Sat Jan 11, 2020 12:37 pm
pitts64 wrote:
Fri Jan 10, 2020 3:55 pm
Wow 206/210 with a 110 in between.. I guess you can't tell me what the specs are.. I am very interested..
What specs do you want ?

Cam# BBCM, M64298-65302-110
256/260 @.012" (Lash Point)
236/240 @.020"
206/210 @.050"
116/120 @.200" <---(EDIT -- I think you meant .200 not .020, right?)
.298"/.302" Lobe Lift
.507"/.513" Gross Valve Lift
.019"/.020" Hot Valve Lash
110 LSA
107 ICL
That looks to me to be what the OP wants. Would grinding it with wider LSA improve the idle vacuum? 112~114~~?

Roadknee
Member
Member
Posts: 143
Joined: Sun Nov 18, 2007 9:31 pm
Location: Washington

Re: 1978 454 solid cam, all street..

Post by Roadknee » Sat Jan 11, 2020 1:39 pm

The small cam will make plenty of vacuum on a 110. I have a flat top 7.8:1 454 with a larger 268 hydraulic. It pulls 18-19” at 800 rpm and 16” in gear at 625 rpm.

User avatar
CamKing
Guru
Guru
Posts: 9278
Joined: Wed Aug 08, 2007 4:05 pm
Location: Denver, NC
Contact:

Re: 1978 454 solid cam, all street..

Post by CamKing » Sat Jan 11, 2020 1:46 pm

Tuner wrote:
Sat Jan 11, 2020 1:35 pm
]That looks to me to be what the OP wants. Would grinding it with wider LSA improve the idle vacuum? 112~114~~?
Like Roadknee said,
Widening the LSA would increase vacuum, but with that short 256/260 Seat Duration, it'll have plenty of vacuum in a 454"
Mike Jones
Jones Cam Designs

Denver, NC
jonescams@bellsouth.net
http://www.jonescams.com
Jones Cam Designs' HotPass Vendors Forum: viewforum.php?f=44
(704)489-2449

bobmc
Member
Member
Posts: 52
Joined: Tue Mar 10, 2009 10:39 am
Location: Atl

Re: 1978 454 solid cam, all street..

Post by bobmc » Sun Jan 12, 2020 8:02 am

what is the last domestic engine with mechanical lifters?

Post Reply