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97Chevyguy

5.7 Vortec specs

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I thought we were talking about a 5.7 not a 5.3

 

The 245 numbers are actual dyno numbers on a stock engine, not advertised GM figures. Depending on small factors (air temp, fuel quality etc) these will vary, but those are the numbers +/- 5hp depending on the day of the week.

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I thought we were talking about a 5.7 not a 5.3

 

The 245 numbers are actual dyno numbers on a stock engine, not advertised GM figures. Depending on small factors (air temp, fuel quality etc) these will vary, but those are the numbers +/- 5hp depending on the day of the week.

Oops! :D Why did I point to a 5.3l...losing it I guess.

 

The spec for  the 5.7l are at;

5.7l Engine Spec

Obviously this is per GM advertising.

 

Compare these specs to the ones for the 5.7l engine in my 1979 Suburban  165 Hp at 3600 rpm and 270 lb-ft at 2000 rpm.

 

Hopes this helps....this time

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