How to determine small port vs larger port 273 heads.
So I ordered shorty headers from tti for my 1967 Barracuda with a 273 2 barrell engine and I have to share this disclaimer from tti:
273-318 BLOCKS: PLEASE NOTIFY US IMMEDIATELY IF YOUR 273-318 cylinder heads have the small port size of 1.550 x 1.090. Modification will be required to the ports for
the headers to seal properly. Modification will be done prior to coating, please allow additional time for this process. (An additional modification fee will apply)
Is there an easy way to find out the port size or do I need to take the exhaust manifolds off and measure the port size. What instrument is best for this or will a standard ruler be fine.
So I ordered shorty headers from tti for my 1967 Barracuda with a 273 2 barrell engine and I have to share this disclaimer from tti:
273-318 BLOCKS: PLEASE NOTIFY US IMMEDIATELY IF YOUR 273-318 cylinder heads have the small port size of 1.550 x 1.090. Modification will be required to the ports for
the headers to seal properly. Modification will be done prior to coating, please allow additional time for this process. (An additional modification fee will apply)
Is there an easy way to find out the port size or do I need to take the exhaust manifolds off and measure the port size. What instrument is best for this or will a standard ruler be fine.
