440 OEM intake manifold and HP exhaust manifolds

[Sixt8Chrgr]

I recently bought both for my 68 440 and wanted to know if I should have the carbon cleaned out of the exhaust manifolds and have the inside of the intake cleaned. My motor is a mild build 440.

Thanks

[tan top]

yeah  give them a good clean out  !!   also no telling what could be / have fallen in there during storage   

[flyinlow]

Really officer, I was just cleaning the carbon out of my manifolds.   

[tan top]

Really officer, I was just cleaning the carbon out of my manifolds.  

..................   .......    was just giving it a clearing out  !!  the carbon  , it had loaded up a bit also 

[Chryco Psycho]

I port match them too & remove casting flaws inside

[Sixt8Chrgr]

I port match them too & remove casting flaws inside

This is the answer I was looking for.

Thanks

[Chryco Psycho]

I cannot remember the last engine I built even in bone stock looking cars where I didn't port the heads & intake , no one can see the mods & it can only help performance / milage

[tan top]

I port match them too & remove casting flaws inside

This is the answer I was looking for.

Thanks

sorry i miss read you question  !!  yep as CP said  

, good gasket match intake to head  &  exhaust port to gasket  , but don't gasket match the  manifold  to exhaust gaskets / exhaust ports in head !  if your going to do a little porting / clean up on the heads , don't go mad  with the polishing the intake ports/ runners!! they need a little rough !!  its the exhaust runner/runners bowl , that you want as smooth as possible

[Challenger340]

IMO, NOT trying to rain on anybody's parade here...I understand you just want to clean out some carbon, etc
but...
I OWN and USE a Flowbench, and anytime we've tried it, that is doing a "gasket match" on the Iron Heads & Intake for a PERFORMANCE Gain by itself....it  does absolutely NOTHING as a Performance Gain below .500" lift, and " marginal" at BEST gains if any above that.
because,
you are basically working with the secondary restriction ?
the PRIMARY restriction being,
the Bowl area directly above the Valve, commonly referred to as "Pocket" Porting.

Until you open up the MAIN restriction to Flow in the Bowl Pocket, just isn't much point "gasket matching" the Port Windows, because they can Flow PLENTY with the stock window "as is".
Actually, from our testing, leaving the pushrod pinch in the Head "as is", promotes port turbulence below .500" and swirl, with larger area under the Flow Curve below .300" Lift.

Sorry, it may "look" all nicey, and if it makes you feel good GO FOR IT, especially if you are just looking to CEAN THINGS UP.
but,
if any consideration to doing it strictly as a "performance", or Power Gain...
it just isn't there.
Especially, if anybody's "charging" you for doing it, WITHOUT doing the Pocket Porting also...you may wish to check with other Engine Builders as well... ?

Just saying...
The FIRST THING that should be considered in Porting for a PERFORMANCE gain....and yields the BIGGEST gains....is a "Pocket" port above the Valve,
then,
cleanup the Port Windows and Gasket Match, to get BOTH, a "cleanup", AND a Power Gain. 

[BSB67]

IMO, NOT trying to rain on anybody's parade here...I understand you just want to clean out some carbon, etc
but...
I OWN and USE a Flowbench, and anytime we've tried it, that is doing a "gasket match" on the Iron Heads & Intake for a PERFORMANCE Gain by itself....it  does absolutely NOTHING as a Performance Gain below .500" lift, and " marginal" at BEST gains if any above that.
because,
you are basically working with the secondary restriction ?
the PRIMARY restriction being,
the Bowl area directly above the Valve, commonly referred to as "Pocket" Porting.

Until you open up the MAIN restriction to Flow in the Bowl Pocket, just isn't much point "gasket matching" the Port Windows, because they can Flow PLENTY with the stock window "as is".
Actually, from our testing, leaving the pushrod pinch in the Head "as is", promotes port turbulence below .500" and swirl, with larger area under the Flow Curve below .300" Lift.

Sorry, it may "look" all nicey, and if it makes you feel good GO FOR IT, especially if you are just looking to CEAN THINGS UP.
but,
if any consideration to doing it strictly as a "performance", or Power Gain...
it just isn't there.
Especially, if anybody's "charging" you for doing it, WITHOUT doing the Pocket Porting also...you may wish to check with other Engine Builders as well... ?

Just saying...
The FIRST THING that should be considered in Porting for a PERFORMANCE gain....and yields the BIGGEST gains....is a "Pocket" port above the Valve,
then,
cleanup the Port Windows and Gasket Match, to get BOTH, a "cleanup", AND a Power Gain. 

Exactly.  The place to start looking for improvements is at the valve/seat.  There is real power at the valve(the grind, and valve back-cut).  Then directly below the valve.  Don't waste your time at the port window. 

[tan top]

IMO, NOT trying to rain on anybody's parade here...I understand you just want to clean out some carbon, etc
but...
I OWN and USE a Flowbench, and anytime we've tried it, that is doing a "gasket match" on the Iron Heads & Intake for a PERFORMANCE Gain by itself....it  does absolutely NOTHING as a Performance Gain below .500" lift, and " marginal" at BEST gains if any above that.
because,
you are basically working with the secondary restriction ?
the PRIMARY restriction being,
the Bowl area directly above the Valve, commonly referred to as "Pocket" Porting.

Until you open up the MAIN restriction to Flow in the Bowl Pocket, just isn't much point "gasket matching" the Port Windows, because they can Flow PLENTY with the stock window "as is".
Actually, from our testing, leaving the pushrod pinch in the Head "as is", promotes port turbulence below .500" and swirl, with larger area under the Flow Curve below .300" Lift.

Sorry, it may "look" all nicey, and if it makes you feel good GO FOR IT, especially if you are just looking to CEAN THINGS UP.
but,
if any consideration to doing it strictly as a "performance", or Power Gain...
it just isn't there.
Especially, if anybody's "charging" you for doing it, WITHOUT doing the Pocket Porting also...you may wish to check with other Engine Builders as well... ?

Just saying...
The FIRST THING that should be considered in Porting for a PERFORMANCE gain....and yields the BIGGEST gains....is a "Pocket" port above the Valve,
then,
cleanup the Port Windows and Gasket Match, to get BOTH, a "cleanup", AND a Power Gain. 

Exactly.  The place to start looking for improvements is at the valve/seat.  There is real power at the valve(the grind, and valve back-cut).  Then directly below the valve.  Don't waste your time at the port window. 

yep thats true also 

[Sixt8Chrgr]

Thanks for the info.

My heads have already had that work done and are on the car. The car is running and I am pleased. I  currently have headers and a RPM Performer intake. As I mentioned I bought these other parts and am considering go back to an all stock look. I want these parts cleaned up prior to install and just wanted to know what I should do.

Thanks