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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: 79 chevy on January 10, 2015, 09:25:04 pm

Title: 454 stamp number question
Post by: 79 chevy on January 10, 2015, 09:25:04 pm

Well I am new to workin on engines what does the number stamped above the timing chain cover mean ?

Title: Re: 454 stamp number question
Post by: Captkaos on January 10, 2015, 10:15:59 pm

Where?  What is the number?

Chris Lucas
73-87chevytrucks.com
squarebody.biz

Title: Re: 454 stamp number question
Post by: 79 chevy on January 11, 2015, 05:47:50 pm

Right above the timing chain cover there spot milled flat with T1111tsh stamped on it

Title: Re: 454 stamp number question
Post by: Captkaos on January 11, 2015, 08:18:07 pm

T = Tonawanda engine plant
11 = November
11 = 11th day
TSH = is either 1975 Truck 454 LS-4 VIN Z, L, fwd OR 1978 Truck 454 VIN LF-8 VIN S, 20, 30

Chris Lucas
73-87chevytrucks.com
squarebody.biz

Title: Re: 454 stamp number question
Post by: 79 chevy on January 11, 2015, 08:29:30 pm

Okay thanks !!