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kevin54 · 04-03-2018, 07:59 PM

I have a 1978 Mercury Cougar with a 351w 2brl that should run in Q/SA. I would like to know If I could change to a 302 2brl and run U/SA?
If I can change to a 302 will the short block have to be a 1978 or is there some leeway on the year? I understand that the Intake, carb and heads year and model specific. I'm new to the Forum Thank you for your help.

04-03-2018, 07:59 PM	#1
kevin54 Junior Member Join Date: Mar 2018 Posts: 3 Likes: 0 Liked 0 Times in 0 Posts	Engine size change I have a 1978 Mercury Cougar with a 351w 2brl that should run in Q/SA. I would like to know If I could change to a 302 2brl and run U/SA? If I can change to a 302 will the short block have to be a 1978 or is there some leeway on the year? I understand that the Intake, carb and heads year and model specific. I'm new to the Forum Thank you for your help.