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My 1970 gmc 2500 came has one.
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∙ 12y ago
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Did 327 engines have 4 bolt mains?
yes
Do all 1991 small block 350's have 4 bolt mains?
No. Most of them were 2-bolt mains. The 3/4 and 1 ton 350 engines were 4-bolt main engines. All the 1/2 tons had the 2-bolt main block.
Were the 350ci engines in the 1995 k1500 z71 4bolt mains or 2 bolt mains?
I've rebuilt many 1992 through 1995 350 engines in Z71 and siliverados and have yet to see a 4 bolt main. I've only seen them in the 3/4 tons and heaver.
How do you tell either four bolt or to bolt main on gm engine 1024388 without removing the oil pan?
Generally, you can't. GM installed both 2 and 4 bolt main caps on many different cylinder block castings. Now, some blocks were never offered with 4 bolt mains. Any low performance displacement (262,267, 305, 307, etc) always had 2 bolt mains. Small journal engines (pre-1969 chevy small blocks) typically had 2 bolt mains even on performance engines.
Are all 1970 Pontiac 455's 4 bolt main?
No, nearly all 1970 455s are drilled for four bolt mains, but fitted with two bolt caps. Only a few high performance models actually got the four bolt caps from the factory.
Did Chevy ever make a 305 4 bolt?
Yes normally they were truck engines.
Will a 1994 Chevy S-10 Blazer engine fit in my 1994 Camaro?
No it will not, The holes in the block that hold the motor mounts are in a different location. Truck engines won't bolt up to car mounts, and car engines won't bolt up to truck mounts.
Will a 1993 Chevy truck engine fit in a 1990 Chevy Truck?
YES. Those 2 engines are the same. NO difference. It is a direct bolt in.
How many bolt mains on 1994 lt1 camaro motor?
The GM F Body LT1 cars got the 2 bolt mains. Only the Corvette LT1 got the 4 bolt mains with aluminum heads.
Are 305 4 bolt mains?
no
Who many bolts in a 350 Chevy?
Are you referring to the main caps? If you are some had two bolt mains, and some had four bolt mains.
What year of motors will fit in a 1991 Chevy truck?
1988 to 1995 are the same engines. They will all be a direct bolt in.
