Engine size

Nicodemus · 04-14-2003, 11:25 AM

What is the biggest engine that can be put into a '66 mustang?

matt1190 · 04-14-2003, 02:24 PM

well, questions like these have been answered so many times, try using the search engine. But to answer your question, a 351. But a hood scoop would probably be required for the extra aircleaner clearance, and you'd have to use shorty style heddman hedders. You could always stroke a 289 or whatever to gain cubic inches if you're really looking for size.

MrWesson22 · 04-15-2003, 06:29 PM

Without cutting, you can fit a 351W based engine. They can be stroked out to 427cid in a traditional block. The ford racing blocks can be stroked/bored out to 454. But for a street engine, you'd be better off staying with a 393 or 408. As for actual size of the engine, a cleveland is wider, and it will fit. But the cleveland has a shorter deck height (9.2 vs 9.5) and cannot be stroked out to as many cubes.

Jeff65 · 04-22-2003, 09:49 AM

Biggest practical size is 351w. 351w is a bolt-in having every bit of power you need for the car (goes to way over 500hp). Others fit but require body surgery. The bigger the misfit, the more surgery required.

04-14-2003, 11:25 AM	#1
Nicodemus Registered Member Join Date: Jul 2002 Location: Chandler, AZ Posts: 10	Engine size What is the biggest engine that can be put into a '66 mustang?

04-14-2003, 02:24 PM	#2
matt1190 Registered Member Join Date: Jan 2003 Posts: 66	well, questions like these have been answered so many times, try using the search engine. But to answer your question, a 351. But a hood scoop would probably be required for the extra aircleaner clearance, and you'd have to use shorty style heddman hedders. You could always stroke a 289 or whatever to gain cubic inches if you're really looking for size. __________________ 66 coupe: 351W 30 over. Fiberglass shelby parts + flares

04-15-2003, 06:29 PM	#3
MrWesson22 Registered Member Join Date: Sep 2000 Location: Dacula, GA Posts: 73	Without cutting, you can fit a 351W based engine. They can be stroked out to 427cid in a traditional block. The ford racing blocks can be stroked/bored out to 454. But for a street engine, you'd be better off staying with a 393 or 408. As for actual size of the engine, a cleveland is wider, and it will fit. But the cleveland has a shorter deck height (9.2 vs 9.5) and cannot be stroked out to as many cubes. __________________ Neal 69 stang 351C/4sp

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04-22-2003, 09:49 AM	#4
Jeff65 Registered Member Join Date: Jul 2002 Location: Oklahoma City Posts: 208	Biggest practical size is 351w. 351w is a bolt-in having every bit of power you need for the car (goes to way over 500hp). Others fit but require body surgery. The bigger the misfit, the more surgery required.