SBC Small Jnl ground to Honda pin size

Kingpen · 07-26-2010, 05:25 PM

was wondering since the new rules on rods in S/S,has anyone had any luck ,or issues,with taking a GM small Journal crank down to the honda rod jnl size?Ive done it many times going from 2.100 to 2.0" but will it work on the 2" pin down to the 1.880?my concerns are "moving" the oil hole over too far, or just making the crank weak,or what?????any comments good & bad............thanks Vic Penrod

Adger Smith · 07-26-2010, 05:29 PM

Vic,
PM

Jeff Lee · 07-26-2010, 06:55 PM

I'm interested also!

Kingpen · 07-27-2010, 06:19 PM

I have talked to some crank grinders(Bullet & Callies) and they cant really say yes or no on the subject...Ive also talked to one of the local grinders that says he did a 3.480 stroke big journal (2.100) down to the honda(1.880) for a dirt car 4 years ago and it is still going...I could see that working if it was offset ground to increase the stroke & maybe not be an issue on uncovering too much of the oil hole...........Vic

Alan Roehrich · 07-27-2010, 07:04 PM

Never mind.

X-TECH MAN · 07-27-2010, 07:49 PM

Its being done and they are living OK.

randy wilson · 07-28-2010, 07:15 AM

Works fine, i have ran 3 motors to 10.600 rpm. no problems.

Ed Wright · 07-28-2010, 09:42 AM

I had a 2.1" Scat turned down to 1.88' with no problems.

03-23-2011, 03:13 PM

Was there anything special that had to be done to the oil holes other than radiusing them? Do you think going to 1.850 is ok?

Ed Wright · 03-23-2011, 03:47 PM

Oil holes are just radiused. No problems.

07-26-2010, 05:25 PM	#1
Kingpen Member Join Date: Feb 2006 Location: sooner state Posts: 105 Likes: 3 Liked 64 Times in 22 Posts	SBC Small Jnl ground to Honda pin size was wondering since the new rules on rods in S/S,has anyone had any luck ,or issues,with taking a GM small Journal crank down to the honda rod jnl size?Ive done it many times going from 2.100 to 2.0" but will it work on the 2" pin down to the 1.880?my concerns are "moving" the oil hole over too far, or just making the crank weak,or what?????any comments good & bad............thanks Vic Penrod

07-26-2010, 05:29 PM	#2
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	Re: SBC Small Jnl ground to Honda pin size Vic, PM __________________ Adger Smith (Former SS)

07-26-2010, 06:55 PM	#3
Jeff Lee VIP Member Join Date: Jul 2007 Location: Anthem, Arizona Posts: 2,766 Likes: 0 Liked 3 Times in 3 Posts	Re: SBC Small Jnl ground to Honda pin size I'm interested also! __________________ Jeff Lee 7494 D/S '70 AMX

07-27-2010, 06:19 PM	#4
Kingpen Member Join Date: Feb 2006 Location: sooner state Posts: 105 Likes: 3 Liked 64 Times in 22 Posts	Re: SBC Small Jnl ground to Honda pin size I have talked to some crank grinders(Bullet & Callies) and they cant really say yes or no on the subject...Ive also talked to one of the local grinders that says he did a 3.480 stroke big journal (2.100) down to the honda(1.880) for a dirt car 4 years ago and it is still going...I could see that working if it was offset ground to increase the stroke & maybe not be an issue on uncovering too much of the oil hole...........Vic

07-27-2010, 07:04 PM	#5
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,066 Likes: 1,487 Liked 1,630 Times in 378 Posts	Re: SBC Small Jnl ground to Honda pin size Never mind. __________________ Alan Roehrich 212A G/S

07-27-2010, 07:49 PM	#6
X-TECH MAN Banned Join Date: Dec 2007 Location: Lake Placid, Florida Posts: 3,203 Likes: 1,047 Liked 235 Times in 110 Posts	Re: SBC Small Jnl ground to Honda pin size Its being done and they are living OK.

07-28-2010, 07:15 AM	#7
randy wilson Senior Member Join Date: Jan 2007 Location: N/A Posts: 882 Likes: 0 Liked 22 Times in 22 Posts	Re: SBC Small Jnl ground to Honda pin size Works fine, i have ran 3 motors to 10.600 rpm. no problems. __________________ don,t have one

07-28-2010, 09:42 AM	#8
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 389 Times in 169 Posts	Re: SBC Small Jnl ground to Honda pin size I had a 2.1" Scat turned down to 1.88' with no problems. __________________ Ed Wright 4156 SS/JA

03-23-2011, 03:13 PM	#9
Tilley2007 Guest Posts: n/a	Re: SBC Small Jnl ground to Honda pin size Was there anything special that had to be done to the oil holes other than radiusing them? Do you think going to 1.850 is ok?

03-23-2011, 03:47 PM	#10
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 389 Times in 169 Posts	Re: SBC Small Jnl ground to Honda pin size Oil holes are just radiused. No problems. __________________ Ed Wright 4156 SS/JA