please help decoding numbers
Team Owner
Joined: Feb 2003
Posts: 53,988
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From: Sitting in his Nowhere land Hanover Pa
2024 C2 of the Year Finalist - Unmodified
2015 C2 of Year Finalist
something is not adding up. the date code listed is sept 4 1978. but you say it was used from 1980-1985. what am I missing
Race Director
Joined: Jul 2001
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Le Mans Master
Joined: Jun 2006
Posts: 6,397
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From: Tampa Florida
Hey Eoin,
I see you're in Dublin...we were just there last week walking down Grafton Street, couldn't believe the number of people shopping and actually buying stuff.
Enjoyed lots of Guinness....learned how to pour the perfect pint.
I see you're in Dublin...we were just there last week walking down Grafton Street, couldn't believe the number of people shopping and actually buying stuff.
Enjoyed lots of Guinness....learned how to pour the perfect pint.
Race Director
Joined: Jul 2001
Posts: 15,892
Likes: 42
There's two possibilities:
CEJ 1978 305cu in auto trans. U LG3 145HP 2bbl full size
or
CEJ 1980 305cu in H LG4 155HP 4bbl Camaro/Impala
The engine was built in Tonawanda NY on October 24th. No small block Corvette engine were built in Tonawanda.
If you want to narrow it down the casting date will be at the back of the block near the transmission flange. My guess given the head casting date is the engine is from the 1978 MY.
CEJ 1978 305cu in auto trans. U LG3 145HP 2bbl full size
or
CEJ 1980 305cu in H LG4 155HP 4bbl Camaro/Impala
The engine was built in Tonawanda NY on October 24th. No small block Corvette engine were built in Tonawanda.
If you want to narrow it down the casting date will be at the back of the block near the transmission flange. My guess given the head casting date is the engine is from the 1978 MY.
Thread Starter
Racer
Joined: Nov 2005
Posts: 340
Likes: 0
From: Dublin
thats an unfortunate 5k added to my budget that I wasn't expecting.
Would that engine match up to the original corvette tranny?
wont see me car for a couple of weeks! so cant check the numbers.
thanks for the help
Would that engine match up to the original corvette tranny?
wont see me car for a couple of weeks! so cant check the numbers.
thanks for the help
Thread Starter
Racer
Joined: Nov 2005
Posts: 340
Likes: 0
From: Dublin
Found the text below from another topic:
Yes, dimensionally all SB Chevy engines interchange (unless you include very early 265 and rare Chevy II 327 blocks). The major differences are:55-79 have the dipstick on the drivers side and 2 piece rear seal. 80-85 have dipstick on the passenger side and 2 piece rear seal.
My engine has the dipstick on the passenger side.
could you let me know the difference between 1 one piece and a two piece rear seal?
thanks
Yes, dimensionally all SB Chevy engines interchange (unless you include very early 265 and rare Chevy II 327 blocks). The major differences are:55-79 have the dipstick on the drivers side and 2 piece rear seal. 80-85 have dipstick on the passenger side and 2 piece rear seal.
My engine has the dipstick on the passenger side.
could you let me know the difference between 1 one piece and a two piece rear seal?
thanks
