Topic: 1977 corvette water pump
in Forum: C3 Engines
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Lifetime MemberModerator
Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
I'mma thinkin long style...
Look at the rear of the pump, at the distance between the back cover of the pump, and the timing cover. If the pump is practically touching the timing cover, it is the "short" pump. If there is a bit of space in between them, it is the "long" pump.
Look at the rear of the pump, at the distance between the back cover of the pump, and the timing cover. If the pump is practically touching the timing cover, it is the "short" pump. If there is a bit of space in between them, it is the "long" pump.
Joel Adams
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
Lifetime MemberModerator
Moses Lake, WA - USA
Joined: 4/16/2005
Posts: 2134
Vette(s): 1976 L48 4-spd, Mahogany Metalic exterior, Buckskin interior 350ci/350hp, 3rd owner, fiberglass spring, 255/50-16's Torq-Thrust II
I have a late built 76 and uses the short water pump. It is the corvette version which has the 3/4" dia pilot on the end for the fan clutch.
Lifetime MemberSHELBYVILLE, TN - USA
Joined: 7/5/2002
Posts: 3942
Vette(s): 1976 L48 auto
1978 L82 4speed
1994 LT1 6speed
1978 L82 4speed
1994 LT1 6speed
should be the short style... have both short on the 76 and the 78(and thats with a zz4 engine, that came with a long pump)... just not enough room between the pump and radiator....
StingrayJim 
NCM Lifetime Member #1936
Stingray's '76���������������������������� StingrayJr's '78���������������������������Lil Red '94 
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Thanks for the responses guys. I pulled it as and it looks to be the short version.
I always thought mid 70's GM/Chevy motors used the long version but I guess I was wrong.
Have any of you switched to the electric style waterpumps and if so any noticable gains?
in Forum: C3 Engines
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