valvetrain Q's for 351 heads

brooksgnm · 04-27-2002, 10:50 PM

Okay this is my first time building anything so take it easy on me lol! I'm building a set of DOOE casting 351 heads for my 302, and I've got some questions about how to set up the valvetrain. I want to use roller rockers, but I'm not sure if I can use them without guideplates, can I? If not what's going to hold the roller in line with the valve tip? If I don't have to use guideplates and screw in studs, I use the stud type not the "pedistal" type correct? If I do have to use screw in's and guideplates I found this on ebay http://cgi.ebay.com/ebaymotors/ws/eb...505436&r=0&t=0 do you guru's out there think that looks like a decent set just from reading about it, or should I just go with all ARP? What kind of rocker do you guys suggest for a street motor that will never see over 6000-6100 rpm's? Also, I know I need to get stepped head bolts since the 351's had bigger bolts than 302's, but where can I find them? Does ARP have a site I can search through? Thanks for any help you can provide!! -Mark

sn95gt19 · 04-28-2002, 02:07 AM

edelbrock sells head bolt bushing kits, you can use to put 351 heads on a 302, if you use guide plates you have to get hardened pushrods also, i think those heads are pedestal mount rockers.

macx · 04-28-2002, 03:15 PM

Not sure, but I think it's Crane that has recently come out with roller rockers that work for that without guideplates - they have downward projections or stubs on either side of the tip roller that go alongside the valve tip and keep the rocker aligned.

04-27-2002, 10:50 PM	#1
brooksgnm Registered Member Join Date: May 1999 Location: Union, Ohio, USA Posts: 582	valvetrain Q's for 351 heads Okay this is my first time building anything so take it easy on me lol! I'm building a set of DOOE casting 351 heads for my 302, and I've got some questions about how to set up the valvetrain. I want to use roller rockers, but I'm not sure if I can use them without guideplates, can I? If not what's going to hold the roller in line with the valve tip? If I don't have to use guideplates and screw in studs, I use the stud type not the "pedistal" type correct? If I do have to use screw in's and guideplates I found this on ebay http://cgi.ebay.com/ebaymotors/ws/eb...505436&r=0&t=0 do you guru's out there think that looks like a decent set just from reading about it, or should I just go with all ARP? What kind of rocker do you guys suggest for a street motor that will never see over 6000-6100 rpm's? Also, I know I need to get stepped head bolts since the 351's had bigger bolts than 302's, but where can I find them? Does ARP have a site I can search through? Thanks for any help you can provide!! -Mark __________________ 85 GT/SVO project underway!

04-28-2002, 02:07 AM	#2
sn95gt19 motors done......woohooo Join Date: Mar 2002 Posts: 799	edelbrock sells head bolt bushing kits, you can use to put 351 heads on a 302, if you use guide plates you have to get hardened pushrods also, i think those heads are pedestal mount rockers. __________________ 95gt lazer red (98 cobra clone) Rice Haters Club Member #116

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04-28-2002, 03:15 PM	#3
macx Registered Member Join Date: Oct 1999 Location: Gordonville MO USA Posts: 448	Not sure, but I think it's Crane that has recently come out with roller rockers that work for that without guideplates - they have downward projections or stubs on either side of the tip roller that go alongside the valve tip and keep the rocker aligned.