454 in a '77 Dually-Intake & Cam Compatibility Questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*JCampbell* · 05-25-2010, 01:43 PM

I’m in the process of rebuilding the 454 out of my ’77 dually. The stock cam is trash and I’d like to replace it with a nice R/V cam and I’m looking for suggestions. I’ve been eyeing at the Edelbrock Performer Series, but I’m open to anything, as long as it’s mild (the truck is my daily) and 50 state legal (I have to play nice w/ the CA emissions Nazis).

Also, I’m looking into the possibility of upgrading to an Edelbrock Performer intake, which brings to mind three questions. First...I’m still going to run the stock Quadrajet and peanut-port heads. Will that intake jive with those parts? Secondly, on an otherwise stock 454, will I even notice a difference, or am I basically spending $200+ on a pretty piece of aluminum with no real-world redeeming value?

At the end of the day, my goal is to have a nice, streetable 454 with a touch more power and throttle response for daily driving and towing duties.

Matt Man · 05-25-2010, 04:12 PM

http://www.summitracing.com/parts/EDL-3761/ im gonna use this as a manifold, but for a cam i still dont know what im gonna use. like you said a rv cam will probably be best for your application.

*JCampbell* · 05-25-2010, 04:38 PM

I'm more curious on if an aftermarket intake will yeild any noticable difference in power/response. I don't want to spend $225 just for the sake of having a piece of shiny aluminum under the hood.

JEM · 05-26-2010, 12:09 AM

Quote:

Originally Posted by JCampbell

I'm more curious on if an aftermarket intake will yeild any noticable difference in power/response. I don't want to spend $225 just for the sake of having a piece of shiny aluminum under the hood.

What heads do you have?

Matt Man · 05-26-2010, 01:10 AM

Quote:

Originally Posted by JEM

What heads do you have?

he has the stock peanut heads. and what carb is on your sled jason?

*JCampbell* · 05-26-2010, 10:50 AM

Quote:

Originally Posted by Matt Man

he has the stock peanut heads. and what carb is on your sled jason?

It's a Quadrajet. However, I'm unsure of any specific model #.

JEM · 05-26-2010, 08:44 PM

Quote:

Originally Posted by Matt Man

he has the stock peanut heads. and what carb is on your sled jason?

Then he shouldn't go overboard on the intake and cam.

The 454SS guys seem to like a Comp 264 hyd-roller conversion, though I stuck with a flat-tappet GMPP stick in my Sub (and went to Vortec heads at the same time.)

I was astonished at just how small the ports are on the peanut-port heads; don't think they've got much on a '60s Ford 289/302, and they're a whole lot smaller than, say, a Taurus SHO 3-liter V6 ports.

68longhorn · 05-25-2010, 08:13 PM

On my Caprice with a 350 I wiped the cam so I put in the Edelbrock performer cam, intake and carb and my butt dyno said it was worth it. I don't have dyno/quarter mile/mpg info to prove anything tho. Heads are were the real difference is on stock gas crunch motor

wheels67 · 05-26-2010, 01:20 AM

Yes it will make quite a difference. The port runners on the performer intake are shaped different than stock to gain airflow. This is importnt when your putting in a cam that has a differnt lift and duration. Buy your intake and cam to match as the manufacturer suggest for best power. Then put some headers on to make sure the extra air is pumping out as efficiant as possible.

New heads can gain you serious power but its serious money too.

*JCampbell* · 05-26-2010, 10:52 AM

Quote:

Originally Posted by wheels67

Yes it will make quite a difference...

...Buy your intake and cam to match as the manufacturer suggest for best power. Then put some headers on to make sure the extra air is pumping out as efficiant as possible...

...New heads can gain you serious power but its serious money too.

Nice. Thanks for the info.

...and no, I'm sticking w/ the stock heads.

*JCampbell* · 06-02-2010, 04:09 PM

What about ignition? I have an HEI distributor on it already. Would an MSD ignition do me any favors, or should I save my $$$?

68longhorn · 06-02-2010, 07:39 PM

I think a good HEI is more than enough

*JCampbell* · 06-02-2010, 09:30 PM

Yeah...that's kind of what I've been reading.

junkyardjohn · 06-04-2010, 09:03 AM

JASON...77 WAS NOT A FANTASTIC YEAR FOR H.P. IN A 454. (I'VE BUILT & REAR WHEELED DYNOED A COUPLE OF THEM) ECONOMY IS NOT AN OPTION, SO WE WON'T DISCUSS IT. THEY WERE BUILT FOR TOURQUE THE BIGGEST STUMBLING BLOCK WILL BE YOUR HEADS. THERE PEANUT PORT & ARE DESIGNED FOR TORQUE & NOT H.P. (THEY HAVE SMALL VALVES) EVERYTHING WORKS IN CONCERT WITH ONE ANOTHER. THE CAM PUSHES UP ON THE PUSHROD,PIVOTING THE ROCKER ARM WITCH IN TURN OPENS YOUR VALVES. YOU CAN ONLY GET SO MUCH FUEL INTO THE CYL.s PAST YOUR VALVES (AGAIN THERE SMALL) & ANY UNBURNT GASSES WILL JUST BE EXPELLED THRU YOUR EXHAUST. YOU WANT EFFICIANTCY. THERES NO CHEAP FIX ON THESE MOTORS IF YOU WANT TO SEE A NOTICABLE IMPROVEMENT IN H.P. OR TORQUE. PARTS FOR THESE ARE EXPENSIVE. COMPARED TO A 350, THEY ARE ABOUT TWICE AS EXPENSIVE. YOU CAN FIGURE ABOUT $2000 - $2500 TO DO THE TOP END. LOOK IN THE BONEYARDS FOR AN EARLY 70s SET OF 049 HEADS OUT OF A CAR. THATS THE LAST THREE DIGITS OF THE CASTING # & CAN BE FOUND UNDER THE VALVE COVER. POISH UP THE RUNNERS, & REMOVE A MINUMAL AMOUNT OF MATERIAL WITH A DREMAL TOOL OR DIE GRINDER. YOU DON'T WANT TO MAKE EM BIGGER (MUCH), YOU JUST WANT TO SMOOTH OUT THE CASTING MARKS & MAKE THEM SMOOTH SO THE INTAKE & EXHAUST GASSES FLOW SMOOTHLY & EASILY. THEN YOU CAN PUT A CAM, CARB & INTAKE & HEADERS ON IT. ANY GOOD CAM UNDER .500 LIFT (PERSONALLY I HATE COMP. CAMS AS THEY'VE RUINED A COUPLE OF MOTORS FOR ME BY NOT HAVEING HARD ENOUGH LOBES)IS SUFFICIANT FOR A D.D. YOU WONT NEED ANY BIGGER THAN A 750 CFM CARB. EITHER. (REMEMBER THE FUEL GOING OUT THE EXHAUST THING?) AS FAR AS THE INTAKE... WELL MOST OF YOUR IMPROVEMENT WILL COME FROM WEIGHT LOSS. ALUMINUM INTAKES SEEM LIKE THEY ARE ABOUT 100 LBS. LIGHTER. IF YOU STICK WITH YOUR STOCK INTAKE, USE THE SAME POLLISHING TECHNEIK AS YOUR HEADS. I EVEN POLISH UP NEW ALUMINUM ONES. IT'S FREE & HELPS ALOT. HEADERS HELP ALOT, BUT IF YOU STICK WITH THE STOCK EXHAUST MANIFOLDS,USE A LARGE DIA. EXHUAST TUBING (2 3/4 OR 3") WITH AN X OR H PIPE WITH LOW BACK PRESSURE MUFFLERS. ALL THIS WILL BE GOOD FOR ABOUT 100 EXTRA HORSES & PROBABLY 80 FT. LBS OF TORQUE. REMEMBER... YOU DRIVE TORQUE & SELL HORSE POWER. NO ONE EVER SEEMS TO UNDERESTIMATE THEIR HORSPOWER. ECONOMY.... FORGETABOUTIT. YOUR PUSHING A 4500 LB BRICK SHAPED VEHICAL DOWN THE ROAD AT 70 MPH. HOPE I DIDN'T COME OFF AS OVERSIMPLFING YOUR SITUATION. THIS IS JUST MY REAL WORLD EXPERIANCE. (NOT WHAT I HEARD, OR THOUGHT BUT WHAT I'VE DONE)

JOHN

*JCampbell* · 06-04-2010, 10:16 AM

Cool. Thanks.

05-25-2010, 01:43 PM	#1
JCampbell Account Suspended Join Date: Apr 2008 Location: Hesperia, Ca Posts: 1,332	454 in a '77 Dually-Intake & Cam Compatibility Questions I’m in the process of rebuilding the 454 out of my ’77 dually. The stock cam is trash and I’d like to replace it with a nice R/V cam and I’m looking for suggestions. I’ve been eyeing at the Edelbrock Performer Series, but I’m open to anything, as long as it’s mild (the truck is my daily) and 50 state legal (I have to play nice w/ the CA emissions Nazis). Also, I’m looking into the possibility of upgrading to an Edelbrock Performer intake, which brings to mind three questions. First...I’m still going to run the stock Quadrajet and peanut-port heads. Will that intake jive with those parts? Secondly, on an otherwise stock 454, will I even notice a difference, or am I basically spending $200+ on a pretty piece of aluminum with no real-world redeeming value? At the end of the day, my goal is to have a nice, streetable 454 with a touch more power and throttle response for daily driving and towing duties.

05-25-2010, 04:12 PM	#2
Matt Man Registered User Join Date: Oct 2009 Location: Buhl, Idaho Posts: 1,438	Re: 454 in a '77 Dually-Intake & Cam Compatibility Questions http://www.summitracing.com/parts/EDL-3761/ im gonna use this as a manifold, but for a cam i still dont know what im gonna use. like you said a rv cam will probably be best for your application. __________________ 86 c30 crew cab dually 454/400 4/6 drop SOLD 1-8-11 1981 chevy K10 short Bed Scottsdale SOLD 10-26-2020 67 GMC Stepside Straight six/3 on the tree "The Peach" 2020 Silverado Double Cab LT Z71 5.3 8 speed Daily Driver K10 build http://67-72chevytrucks.com/vboard/s...d.php?t=671934 The Peach build http://67-72chevytrucks.com/vboard/s...d.php?t=733903

05-25-2010, 04:38 PM	#3
JCampbell Account Suspended Join Date: Apr 2008 Location: Hesperia, Ca Posts: 1,332	Re: 454 in a '77 Dually-Intake & Cam Compatibility Questions I'm more curious on if an aftermarket intake will yeild any noticable difference in power/response. I don't want to spend $225 just for the sake of having a piece of shiny aluminum under the hood.

05-25-2010, 08:13 PM	#8
68longhorn Registered User Join Date: Jun 2007 Location: Cape Coral, Florida Posts: 1,123	Re: 454 in a '77 Dually-Intake & Cam Compatibility Questions On my Caprice with a 350 I wiped the cam so I put in the Edelbrock performer cam, intake and carb and my butt dyno said it was worth it. I don't have dyno/quarter mile/mpg info to prove anything tho. Heads are were the real difference is on stock gas crunch motor

05-26-2010, 01:20 AM	#9
wheels67 Registered User Join Date: Dec 2006 Location: southern Utah Posts: 103	Re: 454 in a '77 Dually-Intake & Cam Compatibility Questions Yes it will make quite a difference. The port runners on the performer intake are shaped different than stock to gain airflow. This is importnt when your putting in a cam that has a differnt lift and duration. Buy your intake and cam to match as the manufacturer suggest for best power. Then put some headers on to make sure the extra air is pumping out as efficiant as possible. New heads can gain you serious power but its serious money too.

06-02-2010, 04:09 PM	#11
JCampbell Account Suspended Join Date: Apr 2008 Location: Hesperia, Ca Posts: 1,332	Re: 454 in a '77 Dually-Intake & Cam Compatibility Questions What about ignition? I have an HEI distributor on it already. Would an MSD ignition do me any favors, or should I save my $$$?

06-02-2010, 07:39 PM	#12
68longhorn Registered User Join Date: Jun 2007 Location: Cape Coral, Florida Posts: 1,123	Re: 454 in a '77 Dually-Intake & Cam Compatibility Questions I think a good HEI is more than enough

06-02-2010, 09:30 PM	#13
JCampbell Account Suspended Join Date: Apr 2008 Location: Hesperia, Ca Posts: 1,332	Re: 454 in a '77 Dually-Intake & Cam Compatibility Questions Yeah...that's kind of what I've been reading.

06-04-2010, 09:03 AM	#14
junkyardjohn Registered User Join Date: Aug 2001 Location: SOMERSET KY. Posts: 6,425	Re: 454 in a '77 Dually-Intake & Cam Compatibility Questions JASON...77 WAS NOT A FANTASTIC YEAR FOR H.P. IN A 454. (I'VE BUILT & REAR WHEELED DYNOED A COUPLE OF THEM) ECONOMY IS NOT AN OPTION, SO WE WON'T DISCUSS IT. THEY WERE BUILT FOR TOURQUE THE BIGGEST STUMBLING BLOCK WILL BE YOUR HEADS. THERE PEANUT PORT & ARE DESIGNED FOR TORQUE & NOT H.P. (THEY HAVE SMALL VALVES) EVERYTHING WORKS IN CONCERT WITH ONE ANOTHER. THE CAM PUSHES UP ON THE PUSHROD,PIVOTING THE ROCKER ARM WITCH IN TURN OPENS YOUR VALVES. YOU CAN ONLY GET SO MUCH FUEL INTO THE CYL.s PAST YOUR VALVES (AGAIN THERE SMALL) & ANY UNBURNT GASSES WILL JUST BE EXPELLED THRU YOUR EXHAUST. YOU WANT EFFICIANTCY. THERES NO CHEAP FIX ON THESE MOTORS IF YOU WANT TO SEE A NOTICABLE IMPROVEMENT IN H.P. OR TORQUE. PARTS FOR THESE ARE EXPENSIVE. COMPARED TO A 350, THEY ARE ABOUT TWICE AS EXPENSIVE. YOU CAN FIGURE ABOUT $2000 - $2500 TO DO THE TOP END. LOOK IN THE BONEYARDS FOR AN EARLY 70s SET OF 049 HEADS OUT OF A CAR. THATS THE LAST THREE DIGITS OF THE CASTING # & CAN BE FOUND UNDER THE VALVE COVER. POISH UP THE RUNNERS, & REMOVE A MINUMAL AMOUNT OF MATERIAL WITH A DREMAL TOOL OR DIE GRINDER. YOU DON'T WANT TO MAKE EM BIGGER (MUCH), YOU JUST WANT TO SMOOTH OUT THE CASTING MARKS & MAKE THEM SMOOTH SO THE INTAKE & EXHAUST GASSES FLOW SMOOTHLY & EASILY. THEN YOU CAN PUT A CAM, CARB & INTAKE & HEADERS ON IT. ANY GOOD CAM UNDER .500 LIFT (PERSONALLY I HATE COMP. CAMS AS THEY'VE RUINED A COUPLE OF MOTORS FOR ME BY NOT HAVEING HARD ENOUGH LOBES)IS SUFFICIANT FOR A D.D. YOU WONT NEED ANY BIGGER THAN A 750 CFM CARB. EITHER. (REMEMBER THE FUEL GOING OUT THE EXHAUST THING?) AS FAR AS THE INTAKE... WELL MOST OF YOUR IMPROVEMENT WILL COME FROM WEIGHT LOSS. ALUMINUM INTAKES SEEM LIKE THEY ARE ABOUT 100 LBS. LIGHTER. IF YOU STICK WITH YOUR STOCK INTAKE, USE THE SAME POLLISHING TECHNEIK AS YOUR HEADS. I EVEN POLISH UP NEW ALUMINUM ONES. IT'S FREE & HELPS ALOT. HEADERS HELP ALOT, BUT IF YOU STICK WITH THE STOCK EXHAUST MANIFOLDS,USE A LARGE DIA. EXHUAST TUBING (2 3/4 OR 3") WITH AN X OR H PIPE WITH LOW BACK PRESSURE MUFFLERS. ALL THIS WILL BE GOOD FOR ABOUT 100 EXTRA HORSES & PROBABLY 80 FT. LBS OF TORQUE. REMEMBER... YOU DRIVE TORQUE & SELL HORSE POWER. NO ONE EVER SEEMS TO UNDERESTIMATE THEIR HORSPOWER. ECONOMY.... FORGETABOUTIT. YOUR PUSHING A 4500 LB BRICK SHAPED VEHICAL DOWN THE ROAD AT 70 MPH. HOPE I DIDN'T COME OFF AS OVERSIMPLFING YOUR SITUATION. THIS IS JUST MY REAL WORLD EXPERIANCE. (NOT WHAT I HEARD, OR THOUGHT BUT WHAT I'VE DONE) JOHN __________________ junkyardjohn 69 1 TON TOW TRUCK // 84 4WD CUCV BLAZER// 85 1 TON 4WD STAKE TRUCK// 86 M1031 5/4 TON 4WD CUCV// ALOT OF OLD TRUCKS FOR ONE OLD MAN TO DRIVE. THERES ROOM FOR ALL OF GODS CREATURES RIGHT NEXT TO MY MASHED POTATOES// LIFE MEMBER OF P.E.T.A (PEOPLE EATING TASTY ANIMALS) DON'T RENT U-HAUL ALWAYS TELL THE TRUTH IT WILL AMAZE PART OF THE PEOPLE & ASTONISH THE REST Last edited by junkyardjohn; 06-04-2010 at 09:06 AM.

06-04-2010, 10:16 AM	#15
JCampbell Account Suspended Join Date: Apr 2008 Location: Hesperia, Ca Posts: 1,332	Re: 454 in a '77 Dually-Intake & Cam Compatibility Questions Cool. Thanks.



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