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12-09-2009, 04:20 PM
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#1 |
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Registered User
Join Date: Nov 2009
Location: goodland,ks
Posts: 217
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Re: 2001 8.1L issues
is the 8.1 a 454 if so why is a 7.4 a 454 or is the 8.1 a 502
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mitch 87 chevy short box 4wd tbi 350/built 700r4/np208 3.73s |
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12-09-2009, 04:34 PM
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#2 | |
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Charlie Daniels w/ a Tq Wrench
Join Date: May 2009
Location: Statesville, NC
Posts: 1,570
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Re: 2001 8.1L issues
Quote:
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ΜΟΛΩΝ ΛΑΒΕ 67 C10 Shortbed "Great Grandpa's Truck" I6 3 on the Tree 71k original miles 5.3 swap in the works69 K5 Blazer-Family Beach Cruiser Project 78 K30 Dually Semi-Retired Fire Truck 350/SM465 35"s SOLD01 2500HD ECSB 6.0 4x4 5.13's 8" lift 38"s Last edited by GCncsuHD; 12-09-2009 at 04:35 PM. |
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12-09-2009, 11:43 PM
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#3 |
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Registered User
Join Date: Nov 2009
Location: goodland,ks
Posts: 217
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Re: 2001 8.1L issues
ok thanks
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mitch 87 chevy short box 4wd tbi 350/built 700r4/np208 3.73s |
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12-10-2009, 12:07 AM
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#4 |
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Windy Corner of a Dirty Street
Join Date: Jun 2003
Location: Pueblo West, Colorado
Posts: 2,926
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Re: 2001 8.1L issues
One way to figure out cubic inches from liters is to multiply the liters by 61.3. Or divide when converting C.I.D. to liters.
7.4L x 61.3 = 453.62 C.I.D 8.1L x 61.3 = 496.53 C.I.D 502 cid / 61.3 = 8.189 Liters
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Current vehicle collection: 1978 Chevrolet K10, 8.1L, NV4500, NP205 1989 Chevrolet Suburban, 8.1L, NV4500, NP241 1993 Chevrolet C1500 Sportside, TBI 7.4L, 4L60E 2001 Chevrolet K2500HD, Ext Cab, SWB, 8.1L, ZF 6 speed 2014 Chevrolet Impala LTZ 3.6L Vortec 8.1L because life is too short to tolerate underpowered vehicles
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12-11-2009, 07:09 PM
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#5 | |
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Registered User
Join Date: Apr 2007
Location: King City, Ontario, Canada
Posts: 974
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Re: 2001 8.1L issues
Quote:
if you do multiply by 61.3... how come 8.1L x 61.3 = 496.. and 502 / 61.3 = 8.1?
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- Jason If you can turn, Youre not going fast enough. Favorite caption: first car to 200 mph in the 1/4 mile, no parachute, drum brakes all the way around.. ..back when men were men. |
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12-11-2009, 11:49 PM
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#6 | |
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Windy Corner of a Dirty Street
Join Date: Jun 2003
Location: Pueblo West, Colorado
Posts: 2,926
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Re: 2001 8.1L issues
Quote:
 Actually, if you want to be nit-picky about it…. 8.1 x 61.3 = 496.53 (rounds up to a 497 CID) 502 / 61.3 = 8.1892333789559543230016313213703 (rounds up to a 8.2L) I doubt 61.3 is actually the natsazz conversion but it is pretty darn close. There really isn’t a big CID displacement change when you get down to tenths of liters. That said, 61.3 still gets you pretty dang close to what they are. Unless you want to go out and measure the bore and stroke of all these engines with ISO certified measuring devises and post up your results. Keep in mind no two engines will be manufactured exactly the same with the exact same bore and stroke and there will be upper and lower spec limits spread over large quantities of engines manufactured that will need to be factored into your equation. Plus you will need to recertify your ISO certified measuring devise after 100 engines. So, when you’re all done averaging your ISO certified tool results and averaging all the bore and stroke samples of engines like the manufactures do you would probably come up with 496 CID for the 8.1L and 502 for the 8.2L. 61.3 sounds like an easy conversion now don’t it?
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Current vehicle collection: 1978 Chevrolet K10, 8.1L, NV4500, NP205 1989 Chevrolet Suburban, 8.1L, NV4500, NP241 1993 Chevrolet C1500 Sportside, TBI 7.4L, 4L60E 2001 Chevrolet K2500HD, Ext Cab, SWB, 8.1L, ZF 6 speed 2014 Chevrolet Impala LTZ 3.6L Vortec 8.1L because life is too short to tolerate underpowered vehicles
Last edited by DirtyLarry; 12-12-2009 at 03:40 AM. Reason: word order |
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