Author Topic: Estimated 1/4 et?  (Read 13970 times)

Offline 85shorty496

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Re: Estimated 1/4 et?
« Reply #30 on: May 14, 2008, 10:15:36 PM »
yep, 25 min cam break-in and 15 min later the piston basically fractured ( we're guessing, couldn't get a replay on the in cylinder camera  ;D) and the wrist pin went thru the cylinder wall,  bent two valves cracked a valve guide and broke two pushrods. didn't even get to drop the hammer. got it rebuilt now and it's running well. race season is about to start. Chetwynd is a once a year event on the local airstrip. we have a full time track in Fort St John that has a race once a month and a track in Fairview 1 per month as well. Grande Prairie also has a 1/year enent as well. Dean's truck is just a warmed over 350, nothing to special. stock heads, moderate cam, Edelbrock intake and 650 cfm carb, headers and exhaust. he has a th400 tranny with a loose 3500 stall and 4.11 gears which are the main reasons for the quick times I think.
85 GMC shortbox
496/th400
12.31 @ 111 mph
1.70 60 ft
www.cardomain.com/ride/330832

" Old Chevys never die, they just go faster "

Offline SUX2BU99

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    • My Cardomain Site. Truck is on Page 6.
Re: Estimated 1/4 et?
« Reply #31 on: May 15, 2008, 11:31:04 AM »
Right on. That totally sux about the piston though. I bet that was hugely aggravating to just get a motor together than to have it grenade and cost a bunch to fix up again. Fort St John has a dragstrip too?? Wow, would have never thought. I know a guy who just moved up there to be the ambulance station chief. His family is up there too (last name Key). That's very interesting about your buddies truck and running 14s with such a mild combo. The gears and converter are definitely helping that one by the sounds of it.
85 Chevy Silverado C10 short, wide, yellow, 2wd. Lowered, 60-over 350 with Dart Iron Eagle heads and Comp Cams XE268 cam, TH350 w/ shift kit, 3.40 Gov-lok 12 bolt.

Offline team39763

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Re: Estimated 1/4 et?
« Reply #32 on: May 16, 2008, 03:37:22 PM »
Nice work T5.  I think you have me beat on the 60ft and we're pretty close on the 1/8mile too.