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Minneapolis Moline Tractors Discussion Forum
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GBD bore/fuel pump

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Author 
Mopower

01-08-2004 11:10:43




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Hello again. I have a nice old GBD that could use a boost. The compression is weak so it takes a minute to warm up and run smooth. If I switched to bigger 4-5/8" blocks (like G1000) when I rebuilt it, would the stock fuel pump and injectors be sufficient to run the slightly larger motor (504 vs. 426) to it's potential? Thanks for any info you have.

Ethan Berry

p.s. I have a UBD with 5-star pump and injectors and G900 blocks (about 300 cubes vs. old 283). Starts a little funny and runs decent, but timing and injectors may be off. I bought it that way, but have not worked on it yet.

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