The pistons are different. The 9:1 compression 2bbl motor has a larger piston dish, and the 11:1 compression 4bbl engine has less volume in the piston dish. The engines are the same otherwise.
Junior Member
Engine- 355 vs. 310?
Can someone tell me the difference between the 1964 Buick Wildcat 355 engine vs. the 310? Both are 300 cc. Is it just the carbs that are different with 355 having a 4 barrel and 310 having a two barrel or are there other parts that are different? Much appreciated! Jerry
Last edited by Tedderdog; 10-05-2007 at 11:42 AM.
The pistons are different. The 9:1 compression 2bbl motor has a larger piston dish, and the 11:1 compression 4bbl engine has less volume in the piston dish. The engines are the same otherwise.
Steve B.
67 GS 525 Buick Stage IV
66 GS Convertible
65 GS HT
63 Riv
02 Subaru WRX Turbo
03 Ford Cobra Convertible (Factory Supercharged)
Junior Member
I appreciate the reponse and makes sense. Jerry
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