USAC Historical Question

Seadog · 10/14/10, 8:27 AM

What was the first year that USAC allowed 410 engines to compete in the sprint cars? Did they go from 305 to 410 in one year or...? Anybody know?

#1jackhewittfan · 10/14/10, 8:42 AM

i dont have specifics but i believe they went to 358 in 80 or 81 and 410 3 or 4 years later.
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Seadog · 10/14/10, 8:50 AM

Quote:

Originally Posted by #1jackhewittfan

i dont have specifics but i believe they went to 358 in 80 or 81 and 410 3 or 4 years later.
Posted via Mobile Device

Thanks for that. Do you know when they started to allow aluminum blocks? Or did they do that when they went to 410?

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10/14/10, 8:27 AM	#1 USAC Historical Question
Seadog Senior Member Join Date: Jul 2007 Posts: 2,136	What was the first year that USAC allowed 410 engines to compete in the sprint cars? Did they go from 305 to 410 in one year or...? Anybody know?

10/14/10, 8:42 AM	#2
#1jackhewittfan Senior Member Race Count This Year: 45 Join Date: Apr 2010 Posts: 356	i dont have specifics but i believe they went to 358 in 80 or 81 and 410 3 or 4 years later. Posted via Mobile Device