Porting Templates

These templates have the port shape scribed on an aluminum plate for each port listed. The actual port size and shape needs to be cut in the aluminum to the scribed lines. The Turbo and 6-Port templates are pre-cut on a CNC water jet. Templates allow easy marking of the housing (dykem or permanent marker, then scribe port) and consistent port opening size/shape.

We now offer intake porting blanks for those engine builders who have their own special port designs. A very critical part of porting is to make ALL the ports exactly the same. With a porting blank, you can make your first port, then transfer that design to the template, then use the template to scribe the rest of the ports.

We have a reasonably detailed explanation of porting (and use of these templates) in our FAQ Section

We also have a DVD which details the porting process start to finish. Click Here

Image	Description	Part Number
	Blank Intake Template (allows 2 ports per template)	49-222BLANK
	6 Port Intake (contains ports for center AND end housings)	49-2226P
	Intake Street Port (4-port) This is for EARLY 4-port 74-78 13b and all 12a. See below for the turbo template	49-22202
	Intake Bridge Port (4-port) This is for EARLY 4-port 74-78 13b and all 12a. See below for the turbo template	49-22201
	Intake Big Bridge Port (4-port) Note: Requires cutting of rotor housings - see FAQ section on bridge porting This is for EARLY 4-port 74-78 13b and all 12a. See below for the turbo template	49-22200
	87-95 Turbo Street Port Intake	49-222TT
Exhaust Templates	Templates are scribed with port shape, you need to cut the actual hole.
Generic Template	Exhaust 12A Street Port	49-22210
	Exhaust 13B Street Port 74-95 All Turbo and Non-Turbo	49-22215
Using the template	Exhaust 12A Race Port	49-22211
	Exhaust 13B Race Port 74-95 All Turbo and Non-Turbo	49-22216

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