What is different between the 240 and 300 other than the stroke, are the cams the same? compression ratios, combustion chambers, heads, pistons etc. I just picked up a 66 240 that could donate some parts to my 82 if it would up performance.
Evan MacDonald

 

The 240 uses longer connecting rods, which, when used with shorter pistons, gives you a better rod/stroke ratio. This helps the air and fuel burn more completely which yields more power. A Mustang Magazine built a 351W with 11.0 compression, longer connecting rods (300 rods), and ran 87-octane fuel. It pulled over 400 HP.

 

I believe the head from a 240 has a much smaller combustion chamber than one from a 300,which meens by using a 240 head on a 300,it willi ncrease your compression and power.

 

The only two basic differences I know of are connecting rods and crank.The 240 has shorter rods, and a different crank. All else is essentially interchangable.... same head, same cam, same carb, same block, etc.

 

 

can any one tell me what distributor i will need for a 1990 ford 300 with carb instead of efi I need to find out what hei distributor I need and nobody seems to know are they inter changeable with the other 300's please let me know or you can call me at 850 598 2090 if you don't get ahold please leave message I'm in need bad