Will this cam work?

Reply Subscribe

Thread Tools

Search this Thread

Oct 17, 2017 | 08:40 AM

c5_nate

Thread Starter

Teching In

Joined: Sep 2017

Posts: 31

Likes: 0

Will this cam work?

I am sending my 243 heads to TSP for stage 1 pnp and mulled to 60cc heads, running a .048 head gasket. Wondering if I’ll have enough clearance for comp cams 54-459-11 I’ll list specs

duration 281/289
durstion at .050 232/239
lift 617/624
lsa 113

http://www.compcams.com/Company/CC/c...csid=1403&sb=0

Oct 17, 2017 | 02:24 PM

KW Baraka

TECH Addict

iTrader: (7)

Joined: Apr 2013

Posts: 2,180

Likes: 132

From: S.A., TX

I see no reason why you couldn't use it.....

KW

Oct 17, 2017 | 03:36 PM

c5_nate

Thread Starter

Teching In

Joined: Sep 2017

Posts: 31

Likes: 0

U think this will have ample piston to valve?

Oct 17, 2017 | 06:41 PM

LS1MCSS

TECH Junkie

iTrader: (18)

Joined: Jan 2006

Posts: 3,831

Likes: 8

From: Dover, Arkansas

Quote:

Originally Posted by c5_nate

U think this will have ample piston to valve?

Even if everyone on this board "thinks" it might be ok, you still need to check clearance just for piece of mind.

Oct 17, 2017 | 09:05 PM

c5_nate

Thread Starter

Teching In

Joined: Sep 2017

Posts: 31

Likes: 0

I realize that. I’m asking people who build these cars and have maybe more or less cam on a similar set up if it should clear, before I spend $500 on a cam, that when installed to check clearance cannot be returned.

Oct 17, 2017 | 09:10 PM

98CayenneT/A

TECH Junkie

Joined: Nov 2013

Posts: 3,913

Likes: 366

From: White Bear, Mn

- Prc 243's milled .030"
- .040" head gasket
- 239/244 .635"/.610" 112+3

I had .040" clearance on the intake
.065" on the exhaust

Oct 17, 2017 | 10:11 PM

c5_nate

Thread Starter

Teching In

Joined: Sep 2017

Posts: 31

Likes: 0

Quote:

Originally Posted by 98CayenneT/A

- Prc 243's milled .030"
- .040" head gasket
- 239/244 .635"/.610" 112+3

I had .040" clearance on the intake
.065" on the exhaust

thank yoi!
i called Texas speed today and they suggested I go .025 off the heads for 61cc for optimal clearance.

10 Reasons Daily Driving a Swap Project SUCKS! (& 1 Reason to Do It Anyway)

Michael S. Palmer

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Brett Foote

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Pouria Savadkouei

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Verdad Gallardo

7 Most Reliable High-Performance Engines GM Has Ever Built

Verdad Gallardo

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Verdad Gallardo

6 Common C5 Corvette Failures and What's Involved In Repairing Them

Pouria Savadkouei

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Verdad Gallardo

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Pouria Savadkouei

Top 10 Most Powerful Chevy Trucks Ever Made!

Oct 18, 2017 | 06:36 AM

c5_nate

Thread Starter

Teching In

Joined: Sep 2017

Posts: 31

Likes: 0

I got a really good deal on a set of 243, so I’m gonna get them
ported with a mild set up while a plan my bigger stuff

Oct 18, 2017 | 10:31 AM

#10

farmington

TECH Fanatic

iTrader: (14)

Joined: Jun 2010

Posts: 1,807

Likes: 13

From: Little River SC

while Cayenne had some clearance, its not enough. should be closer to .100 on the exhaust side.

Oct 18, 2017 | 10:37 AM

#11

98CayenneT/A

TECH Junkie

Joined: Nov 2013

Posts: 3,913

Likes: 366

From: White Bear, Mn

Quote:

Originally Posted by c5_nate

thank yoi!
i called Texas speed today and they suggested I go .025 off the heads for 61cc for optimal clearance.

Quote:

Originally Posted by farmington

while Cayenne had some clearance, its not enough. should be closer to .100 on the exhaust side.

I did end up cutting valves reliefs on the intake and exhaust of .030"

Oct 18, 2017 | 10:46 AM

#12

HCI2000SS

TECH Senior Member

iTrader: (2)

Joined: Aug 2012

Posts: 11,137

Likes: 20

From: Howell & Fenton MI

You should ask TSP this question. With a 60cc chamber and 4 degrees advance in that particular cam it should clear, but by how much I have no idea

Oct 18, 2017 | 09:24 PM

#13

tech@WS6store

LS1Tech Premium Sponsor

iTrader: (2)

Joined: Apr 2016

Posts: 4,670

Likes: 250

VERY close. dont mill em .025. cut it back to .018 imo. And where do you get a .048 head gasket?

Oct 18, 2017 | 09:43 PM

#14

c5_nate

Thread Starter

Teching In

Joined: Sep 2017

Posts: 31

Likes: 0

Quote:

Originally Posted by tech@WS6store

VERY close. dont mill em .025. cut it back to .018 imo. And where do you get a .048 head gasket?

FELpro 26912pt I believe is the part number

Oct 18, 2017 | 09:45 PM

#15

c5_nate

Thread Starter

Teching In

Joined: Sep 2017

Posts: 31

Likes: 0

Quote:

Originally Posted by 98CayenneT/A

I did end up cutting valves reliefs on the intake and exhaust of .030"

Marengo yours ported by TSP? They sink the balances as part of the port job.

Oct 18, 2017 | 10:37 PM

#16

tech@WS6store

LS1Tech Premium Sponsor

iTrader: (2)

Joined: Apr 2016

Posts: 4,670

Likes: 250

Thats a stock replacement gasket for 6.0 and l92. They are .051 just like all the rest...ive measured them.

Oct 19, 2017 | 10:20 PM

#17

c5_nate

Thread Starter

Teching In

Joined: Sep 2017

Posts: 31

Likes: 0

Quote:

Originally Posted by tech@WS6store

Thats a stock replacement gasket for 6.0 and l92. They are .051 just like all the rest...ive measured them.

wierd I’ll measure when I get them. .048 is compressed thickness, not the thickness out of the box. Dunno why Felpro would sell .051 and .048 listings if they are the same.