Neighbor wants to know how to identify a Buick 355 engin

andy r · Dec 20, 2021

Neighboring farmer wants to know how to identify a Buick 355 engine. Seems like people have told him it is hard, impossible or they don't know. I believe it came out of a Buick Electra car. Thank you.

RESLLS · Dec 21, 2021

Wildcat 355 was actually a 300 cubic inch with 355 lb ft torque. Is it aluminum head or steel.

In 1964, Buick replaced the 215 with an iron-block engine of very similar architecture. The new small block engine had a bore of 3.75in (95.3mm) and a stroke of 3.4in (86.4mm) for a displacement of 300-cubic-inch (4.9L). It retained the aluminum cylinder heads, intake manifold, and accessories of the 215 for a dry weight of 405lb (184kg). The 300 was offered in two-barrel form, with 9.0:1 compression, making 210hp (157kW) at 4600rpm and 310lbft (420Nm) at 2400rpm, and four-barrel form, with 11.0:1 compression, making 250hp (186kW) at 4800rpm and 355lbft (481Nm) at 3000rpm.

For 1965, the 300 switched to cast-iron heads, raising dry weight to 467lb (212kg), still quite light for a V8 engine of its era. The four-barrel option was cancelled for 1966, and the 300 was replaced entirely by the 350 in 1968.

centash · Dec 21, 2021

The GM V 8 engines of that era have the distributor on the rear of the engine....Chev, Pontiac and Olds V8, except the Buick engine which had the distributor on the front. For displacement ID, an engine code or block casting numbers are needed.

Ben

Old Ford Mechanic · Dec 21, 2021

Maybe this will help.https://www.buicks.net/shop/reference/engine_ident_63_75.php

Neighbor wants to know how to identify a Buick 355 engin

andy r

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RESLLS

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centash

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Old Ford Mechanic

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