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Help with engine numbers Please

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Old Aug 5, 2002 | 08:56 PM
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Ray z's Avatar
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Default Help with engine numbers Please



Friend just bought a 66 with the following engine in it. Need some help trying to figure out what he has.
Casting number 3963512 so I know its a BB 427 or 454. Owner said he thought it had a 454 in it.
Has another casting number: 8 Hi Perf
K PA 58
On the vin pad 10316CRV
In the back by bel housing it has the following: L 17 8


Was this some type of Truck replacement block?

Alum intake# 988082
Thanks Ray




[Modified by Ray z, 8:28 PM 8/5/2002]
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Old Aug 5, 2002 | 11:34 PM
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Default Re: Help with engine numbers Please (Ray z)

All I can find in my book is the block is a 69-71 big block, 427 or 454. Vin crv doesn't equate to any vette blocks I can find, closest was crj, problably chevelle block would be my quess. Hope someone else can help more. :cheers:
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Old Aug 6, 2002 | 01:05 AM
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Default Re: Help with engine numbers Please (Ray z)

Casting number 3963512 so I know its a BB 427 or 454.
On the vin pad 10316CRV
Ray,
You may have something good there. My data show the CRV suffix as being a 1970 Chevelle 454ci/450hp - LS-6 - with manual trans

tom...
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Old Aug 6, 2002 | 01:06 AM
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Default Re: Help with engine numbers Please (Ray z)

Someone can correct me if I'm wrong, but the CRV is a 1970 Chevelle 454 / 450 hp 11.25:1 compression motor. Maybe someone else can help you on the date codes! :cheers:
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Old Aug 6, 2002 | 11:18 AM
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Default Re: Help with engine numbers Please (Tom73)

Tom, I thought LS-6 myself but the block cast L-17 68 seems to early for a 1970 motor, what do you think
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Old Aug 6, 2002 | 11:47 AM
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Default Re: Help with engine numbers Please (Ray z)

Tom, I thought LS-6 myself but the block cast L-17 68 seems to early for a 1970 motor, what do you think
I agree, Dec 17 1968 seems very early for a 70 motor, basicly skipped over the 69 model year. Is the VIN deritive also stamped on the stamp pad? That could help confirm the year. Could always be a block that was way in the back and did not get pulled for assembly until the 70 model year.

tom...
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