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Old 11-28-2009, 01:59 PM   #1
mvfd70
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Intake: Square bore or spreadbore?

I've got a 400 SBC in a 78 silverado. Not real familiar with this engine. It's all stock and it needs a new carb or the Q-jet needs rebuilt. Would this have a square bore or spredbore on the intake?
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Old 11-28-2009, 02:03 PM   #2
Pyrotechnic
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Re: Intake: Square bore or spreadbore?

Spreadbore
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Old 11-28-2009, 02:04 PM   #3
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Re: Intake: Square bore or spreadbore?

It would be a spreadbore but you could put a adapter style spacer on it and put on what ever you want.
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Old 11-28-2009, 02:15 PM   #4
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Re: Intake: Square bore or spreadbore?

Thanks. Yeah i guess I could put an adapter on. I was hoping it was spreadbore. The plan now is to put the good running carb off my dodge truck onto that motor to see if it is a carb problem of something else. I'm pretty sure it's carb related but that'll tell me for sure.

I know the dodge and chevy throttle linkages are different. This is just going to go on temporarily. I gotta have my good carb back on my dodge since it's my daily driver.
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2002 GMC Yukon Denali XL

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