Okay, so a 454 has the same stroke as a 502 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

JHickson6 · 05-28-2002, 11:42 PM

Thanks to all your help I now know that the difference between a 454 and a 502 is the bore. The strokes for boh are 4.00" but the bore of a 454 is 4.25" and the bore of the 502 is 4.466". My latest question for you guys is will I have any problems boring out the 454 block to the same as bore as the 502? Will the new bore be to big that it will cut into the waterjacket? Any information you guys might have would be a great assest to me!

You Guys are Awesome

JHickson6

SCOTI · 05-29-2002, 12:04 AM

Man please don't think I'm creepy & just want to rain on your parade... but the most I believe you can safely bore a 454 over is about .125 w/o problems which gives you only 481ci. Save a little longer & buy the 502 block.

JHickson6 · 05-29-2002, 12:10 AM

Thanks you confirmed what someone else had just told me!
I Appreciate All Your Help

JHickson

superchevy · 05-29-2002, 12:12 AM

Just build you a 496 stroker using the stock 454 block, and a 4.25" stroker crank.
For a quick primer on stroker motors and some great prices as well, go to www.strokermotor.com
SC

05-28-2002, 11:42 PM	#1
JHickson6 I Love This Stuff! Join Date: May 2002 Location: Winnipeg, Manitoba, Canada Posts: 739	Okay, so a 454 has the same stroke as a 502 Thanks to all your help I now know that the difference between a 454 and a 502 is the bore. The strokes for boh are 4.00" but the bore of a 454 is 4.25" and the bore of the 502 is 4.466". My latest question for you guys is will I have any problems boring out the 454 block to the same as bore as the 502? Will the new bore be to big that it will cut into the waterjacket? Any information you guys might have would be a great assest to me! You Guys are Awesome JHickson6

05-29-2002, 12:04 AM	#2
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,031	Man please don't think I'm creepy & just want to rain on your parade... but the most I believe you can safely bore a 454 over is about .125 w/o problems which gives you only 481ci. Save a little longer & buy the 502 block. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

05-29-2002, 12:10 AM	#3
JHickson6 I Love This Stuff! Join Date: May 2002 Location: Winnipeg, Manitoba, Canada Posts: 739	your right! Thanks you confirmed what someone else had just told me! I Appreciate All Your Help JHickson

05-29-2002, 12:12 AM	#4
superchevy Got big-block? Join Date: Jul 2000 Location: Austin, Texas Posts: 2,453	Just build you a 496 stroker using the stock 454 block, and a 4.25" stroker crank. For a quick primer on stroker motors and some great prices as well, go to www.strokermotor.com SC __________________ '68 CST SWB factory 396/T400 buddy buckets, a/c, ps, pb '72 Corvette convertible 454/4spd/ac, ps, pb '73 GMC Sierra Grande short wide 454/T400 ps, pb, ac '77 K5 Blazer black on red, 350/T350/NP205 ps, pb, ac all original '78 GMC Sierra Classic short wide 454/T400 ps, pb, ac '72 GMC Sprint SP454. 1 of 38 built. '73 GMC Sprint SP454. 1 of 71 built. '75 GMC Sprint SP454. 1 of 25 built. SOLD! '72 GMC K25 4x4 468/4L80e/NP205 build thread http://67-72chevytrucks.com/vboard/s...23#post4324423 SOLD!'55 Chevy gasser 496/4spd build thread http://67-72chevytrucks.com/vboard/s...96#post4324396



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