Supercharged111
Truly Awesome
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- Aug 20, 2015
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Did you drill the block for that? I thought Vortec blocks lacked a water passage for that.
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I got caught on that. Didn't realize it's a two-part drilling, from head deck down, and then intersecting with a second drilling from water pump face rearward.Did you drill the block for that? I thought Vortec blocks lacked a water passage for that.
Did you drill the block for that? I thought Vortec blocks lacked a water passage for that.
I thought they were Japanese, but the way things get moved-around, it's hard to tell without contacting the"manufacturer" or looking on the box.
I looked heavy into this when I was replacing my TBI water pump. Many of the new cast iron replacements you see out there are rebranded GMB. Unless you find some new old American stock or it's remanufactured in an older casting, that's what you're bound to find. The GMB logo will be laser etched on the front of the pump.
I bought a GMB pump. It was Chinese, but it hasn't leaked yet and keeps my high compression 383 in check. Mine came painted black and included gaskets. I should also note I bought the high volume model.
Nice to see the extra effort than my previous raw-cast graphite-rubbed replacements. Although it didn't hurt operation, they became rusty immediately if left uncoated.
I drive a 1993 Chevy custom Star Craft G20 Van with a TBI 350 with dual air in Phoenix AZ. I lost the original water pump. As I was running a Large 6 blade Fan with a themo clutch, so I was looking for a water pump with heavy duty bearings and extra flow.
I bought a Edelbrock water pump with those features, and so far with a 30K miles the Van barely ever runs warm, she stays at 190 all the time . She does not over heat any any time.
Rich