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Southpa · 04-01-2002, 06:32 PM

Definitely a 400ci. the three below are from looking up the engine suffix code (TLS) at this site:
http://www.nastyz28.com/sbchevy/spcode8.html

1975 TLS 400 conv.cab U LF4 175hp 4bbl K-10 to 2500
1977 TLS 400 conv.cab R LF4 175hp 4bbl K-10 to 2500
1979 TLS 400 con. cab, a/t, Cal R LF4 170hp 4bbl K-10 to 2500

I don't know if the other number is a VIN. Check for other numbers at the back of the block. I'm sure someone else here can narrow it down further.

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Southpa
1970 GMC 1500 Custom
Victoria, BC, Canada

[This message has been edited by Southpa (edited April 01, 2002).]

04-01-2002, 06:32 PM	#2
Southpa Registered User Join Date: May 2000 Location: Victoria, BC, Canada Posts: 2,409	Definitely a 400ci. the three below are from looking up the engine suffix code (TLS) at this site: http://www.nastyz28.com/sbchevy/spcode8.html 1975 TLS 400 conv.cab U LF4 175hp 4bbl K-10 to 2500 1977 TLS 400 conv.cab R LF4 175hp 4bbl K-10 to 2500 1979 TLS 400 con. cab, a/t, Cal R LF4 170hp 4bbl K-10 to 2500 I don't know if the other number is a VIN. Check for other numbers at the back of the block. I'm sure someone else here can narrow it down further. ------------------ Southpa 1970 GMC 1500 Custom Victoria, BC, Canada [This message has been edited by Southpa (edited April 01, 2002).] __________________ 1970 GMC 1500 Custom Original 350/TH350 Victoria, BC, Canada You can wish in one hand and crap in the other. See which one gets filled first.