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scicala · 02-25-2020, 05:56 PM

In '55 there were two Mercury Y-Blocks offered. The Montclair came standard with a 198 HP 292 (like the T-Bird), and all other models came with a 188 HP 292. The 198 HP engine was 8.5:1 compression, and the 188 HP was 7.5:1
Based on KULTULZ's quote above, it sounds like 188 HP got the cream/white air cleaner, and 198 HP got the pale yellow one. I know the '55 Montclair I used to have, had the pale yellow one and was 198 HP.

Sal

02-25-2020, 05:56 PM	#19
scicala Senior Member Join Date: Jun 2010 Location: Detroit suburb, MI Posts: 3,698	Re: Y block Mercury engine color? In '55 there were two Mercury Y-Blocks offered. The Montclair came standard with a 198 HP 292 (like the T-Bird), and all other models came with a 188 HP 292. The 198 HP engine was 8.5:1 compression, and the 188 HP was 7.5:1 Based on KULTULZ's quote above, it sounds like 188 HP got the cream/white air cleaner, and 198 HP got the pale yellow one. I know the '55 Montclair I used to have, had the pale yellow one and was 198 HP. Sal