What octane needed for SBC with 13 to 1 compres, steel heads

67champ · 08-02-2013, 08:26 PM

What octane would be needed for SBC with 13 to 1 compression, with steel heads? I am trying to find the cam card info, but without that info; can you still tell me what you think..? Thanks

Tim H · 08-02-2013, 08:27 PM

110 vp

cad · 08-03-2013, 01:23 AM

x2

67champ · 08-04-2013, 12:46 AM

Thanks! If I get the cam card info, I will post... This is for a freind of mine...

Geerhead55 · 08-10-2013, 01:50 AM

I too run 110, in an iron head 406 with 13.2 to 1 compression,(Probe pistons), typical Comp Cam roller with 630/672 lift, with Manley crank and rods. The heads are some old Motown 220s we had laying around,, did a freshen up on them and port match on a 2925 Super Victor,, threw a Proform/Holley hybrid 750 on it and made 625 on the dyno,, not earth shattering, but decent. The motor liked the smaller carb, as it lost hp with an 850 and a 950 we had with us. The 110 fuel seems fine. Good luck with your project.
Danny Durham

Mike Croley · 08-15-2013, 03:18 PM

Quote:

Originally Posted by 67champ

What octane would be needed for SBC with 13 to 1 compression, with steel heads? I am trying to find the cam card info, but without that info; can you still tell me what you think..? Thanks

A good 110 should be fine. Check the Motor Octane rating and compare between brands.
Sunoco 110 Motor Octane is 106
VP 110 Motor Octane is 107
Renegade 110 Motor Octane is 108

08-02-2013, 08:26 PM	#1
67champ Junior Member Join Date: Feb 2002 Location: Ohio Posts: 43 Likes: 4 Liked 1 Time in 1 Post	What octane needed for SBC with 13 to 1 compres, steel heads What octane would be needed for SBC with 13 to 1 compression, with steel heads? I am trying to find the cam card info, but without that info; can you still tell me what you think..? Thanks

08-02-2013, 08:27 PM	#2
Tim H VIP Member Join Date: Jan 2007 Posts: 1,010 Likes: 897 Liked 430 Times in 142 Posts	Re: What octane needed for SBC with 13 to 1 compres, steel h 110 vp

08-03-2013, 01:23 AM	#3
cad Senior Member Join Date: Apr 2009 Location: Omaha, NE Posts: 673 Likes: 140 Liked 72 Times in 40 Posts	Re: What octane needed for SBC with 13 to 1 compres, steel h x2

08-04-2013, 12:46 AM	#4
67champ Junior Member Join Date: Feb 2002 Location: Ohio Posts: 43 Likes: 4 Liked 1 Time in 1 Post	Re: What octane needed for SBC with 13 to 1 compres, steel h Thanks! If I get the cam card info, I will post... This is for a freind of mine...

08-10-2013, 01:50 AM	#5
Geerhead55 VIP Member Join Date: Sep 2002 Location: Tacoma, Washington Posts: 1,632 Likes: 0 Liked 5 Times in 5 Posts	Re: What octane needed for SBC with 13 to 1 compres, steel h I too run 110, in an iron head 406 with 13.2 to 1 compression,(Probe pistons), typical Comp Cam roller with 630/672 lift, with Manley crank and rods. The heads are some old Motown 220s we had laying around,, did a freshen up on them and port match on a 2925 Super Victor,, threw a Proform/Holley hybrid 750 on it and made 625 on the dyno,, not earth shattering, but decent. The motor liked the smaller carb, as it lost hp with an 850 and a 950 we had with us. The 110 fuel seems fine. Good luck with your project. Danny Durham