How big can a small block go? - Moparts Forums

Register Log In Moparts Forums Unlawfl's Race & Engine Tech How big can a small block go?

Print Thread

How big can a small block go? #2299395 05/05/17 10:21 AM 05/05/17 10:21 AM
Joined: Jan 2003 Posts: 6,392 nielsville, minn. Q quickd100 OP master
quickd100 OP master Q Joined: Jan 2003 Posts: 6,392 nielsville, minn.	Just wondering, how many inches can be wrung out of a small block Mopar?

Re: How big can a small block go? [Re: quickd100] #2299409 05/05/17 10:38 AM 05/05/17 10:38 AM
Joined: Jan 2003 Posts: 13,363 Marion, South Carolina [><] an8sec70cuda I Live Here
an8sec70cuda I Live Here Joined: Jan 2003 Posts: 13,363 Marion, South Carolina [><]	Wasn't that Silva fella's small block 501"? CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax

Re: How big can a small block go? [Re: quickd100] #2299416 05/05/17 10:53 AM 05/05/17 10:53 AM
Joined: Mar 2005 Posts: 792 Earth R Rob C super stock
Rob C super stock R Joined: Mar 2005 Posts: 792 Earth	Never heard of a 501 small block. I would love to see that article! Otherwise, IIRC, 472-ish is about it. You can grab a CID calf and enter the biggest bore and stroke combo you know of. Iggest bore I heard of is a 4.22 and stroke being 4.25. If there is bigger, I haven't heard/read it yet.

Re: How big can a small block go? [Re: quickd100] #2299422 05/05/17 11:01 AM 05/05/17 11:01 AM
Joined: Jan 2007 Posts: 685 pennsylvania poboyengineering mopar
poboyengineering mopar Joined: Jan 2007 Posts: 685 pennsylvania	IIRC, Silva's bullet was built on an AMC block. It may be ugly, but it sure is slow. Girls comb their hair in rear view mirrors and the boys try to look so hard....

Re: How big can a small block go? [Re: Rob C] #2299428 05/05/17 11:03 AM 05/05/17 11:03 AM
Joined: Jan 2003 Posts: 13,363 Marion, South Carolina [><] an8sec70cuda I Live Here
an8sec70cuda I Live Here Joined: Jan 2003 Posts: 13,363 Marion, South Carolina [><]	Originally Posted By Rob C Never heard of a 501 small block. I would love to see that article! Otherwise, IIRC, 472-ish is about it. You can grab a CID calf and enter the biggest bore and stroke combo you know of. Iggest bore I heard of is a 4.22 and stroke being 4.25. If there is bigger, I haven't heard/read it yet. Just did a quick search and found this. The 501" was a R3 Block that was CNC lightened and I believe had a 4.5" stroke Bryant crankshaft. Indy 360-1 heads also. Pump gas car that ran 9.70s. It was awesome. https://board.moparts.org/ubbthreads/ubbthreads.php/topics/2197522/re-ron-silva-valiant-build.html Last edited by an8sec70cuda; 05/05/17 11:08 AM. CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax

Re: How big can a small block go? [Re: quickd100] #2299430 05/05/17 11:09 AM 05/05/17 11:09 AM
Joined: Jan 2007 Posts: 685 pennsylvania poboyengineering mopar
poboyengineering mopar Joined: Jan 2007 Posts: 685 pennsylvania	I stand corrected... It may be ugly, but it sure is slow. Girls comb their hair in rear view mirrors and the boys try to look so hard....

Re: How big can a small block go? [Re: quickd100] #2299520 05/05/17 01:36 PM 05/05/17 01:36 PM
Joined: Jan 2003 Posts: 20,176 Park Forest, IL slantzilla Too Many Posts
slantzilla Too Many Posts Joined: Jan 2003 Posts: 20,176 Park Forest, IL	IIRC, BPE has a 4.5" arm for a stock block 360 that will go 440+". "Everybody funny, now you funny too."

Re: How big can a small block go? [Re: quickd100] #2299529 05/05/17 02:00 PM 05/05/17 02:00 PM
Joined: Jan 2003 Posts: 6,392 nielsville, minn. Q quickd100 OP master
quickd100 OP master Q Joined: Jan 2003 Posts: 6,392 nielsville, minn.	I remember the motor but could remember how big it went. Didn't he have some problems getting it to seal water?

Re: How big can a small block go? [Re: quickd100] #2299553 05/05/17 02:33 PM 05/05/17 02:33 PM
Joined: Mar 2013 Posts: 103 Kansas, Topeka 6 69 lawndart member
69 lawndart member 6 Joined: Mar 2013 Posts: 103 Kansas, Topeka	I have a 468, 4.185 x 4.25 BPE swinging assembly runs great, small set of W9's pump gas motor, Torque monster. Working on a 471, 4.200 x 4.250 with a good set of W8's. I think you could go 4.25 x 4.5 510cid, the rod ratio would suck but you could do it, just my option.

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1