imho....
My Build!
Thread Starter
Instructor
Joined: Oct 2008
Posts: 121
Likes: 0
From: Hooksett NH
My Build!
Well after months of research and great info. from this forum I finally placed my parts order for the top end build. Do you foresee any problems (clearance issues.) On my 1975 L-48 stock short block, with auto, and 3.08 gears.
Edel. Performer heads #60909 64cc
ARP-134-3601 Head Bolts
Edel. 9629 Pushrods 7.900"
Sum-G6905 Roller Rocker Set 1.5
Felpro #1094 head gasket .015
Edel. Performer Intake #2101 Non-EGR
Edel.8504 intake manifold bolt kit
Lun-60102LK Voodoo Camshaft kit
ACC-31041 GM Advance Curve kit
Sum-G6600 True Roller Timiing set
Felpro #2802 SBC full gasket set
NGK-7373 Spark Plugs
Misc. tread sealer, RTV gasket maker, plugs, thermostat etc.
Edel. Performer heads #60909 64cc
ARP-134-3601 Head Bolts
Edel. 9629 Pushrods 7.900"
Sum-G6905 Roller Rocker Set 1.5
Felpro #1094 head gasket .015
Edel. Performer Intake #2101 Non-EGR
Edel.8504 intake manifold bolt kit
Lun-60102LK Voodoo Camshaft kit
ACC-31041 GM Advance Curve kit
Sum-G6600 True Roller Timiing set
Felpro #2802 SBC full gasket set
NGK-7373 Spark Plugs
Misc. tread sealer, RTV gasket maker, plugs, thermostat etc.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
Don't order the pushrods yet. Order a pushrod length checker and make sure you determine the exact length you will need with the checker. then get the pushrods. Anytime you change heads, cam, lifters, rockers you should definetely check this first. Correct valvetrain geometry will assure you of a much more durable build with minimal side loading of the valve.
Le Mans Master
Joined: Apr 2007
Posts: 7,353
Likes: 72
From: Graceland in a Not Correctly Restored Stingray
Intake/head/cam combo is sound. Assuming the short block is in good shape and proper assembly, I'd think you ought to be well pleased with the improvement over the L48 spec. Keeping the original carb?
Agree you should wait to buy push rods.
TSW
Agree you should wait to buy push rods.
TSW
Burning Brakes
Joined: Jan 2004
Posts: 1,043
Likes: 4
From: Va
Don't order the pushrods yet. Order a pushrod length checker and make sure you determine the exact length you will need with the checker. then get the pushrods. Anytime you change heads, cam, lifters, rockers you should definetely check this first. Correct valvetrain geometry will assure you of a much more durable build with minimal side loading of the valve.
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Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
Le Mans Master
Joined: Apr 2007
Posts: 7,353
Likes: 72
From: Graceland in a Not Correctly Restored Stingray
While were at it, lets suggest that the OP could have gone with a roller cam, some AFR's, a 750 Race Demon on a Victor Jr. an E-curve MSD dizzy, a 100 shot, and...
Thing is, there will always be untapped performance potential left on the table, from bigger this or more that; something I would assume the OP understood when choosing these current specs. If more is what he wants then the sky's the limit, but a sound build isn't always about max output.
Thing is, there will always be untapped performance potential left on the table, from bigger this or more that; something I would assume the OP understood when choosing these current specs. If more is what he wants then the sky's the limit, but a sound build isn't always about max output.
Race Director
Joined: May 2003
Posts: 10,956
Likes: 409
From: California
Just one person suggested 1.6 lifters and we all know how that is bad for the valve guides. so if he wants that extra lift get it in the cam
... right?? anyway, imho..... also go a roller cam, I chewed up my first build at 800 miles from a flat tappet cam. the oils just dont have the zinc, led and??? in them anymore... I read a engine re-builders mag that the machine shop gave me and it was talking about all the flat cams happing, and that it is due to the oils. and yes i know about putting in additives... but who wants to do that all the time when you can fix it with a roller cam?
Thread Starter
Instructor
Joined: Oct 2008
Posts: 121
Likes: 0
From: Hooksett NH
Thanks for the replies. I'm reusing the Q-Jet. Works great right now. Reworking distributor, and hoping to wake this engine up to make it more fun on the street. Next will be a new short block, and some of the above parts. I will measure the pushrods. Thanks for the advice.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
Pro
Joined: Jul 2008
Posts: 699
Likes: 3
From: Millersville, MD
Just one person suggested 1.6 lifters and we all know how that is bad for the valve guides. so if he wants that extra lift get it in the cam... right?? anyway, imho..... also go a roller cam, I chewed up my first build at 800 miles from a flat tappet cam. the oils just dont have the zinc, led and??? in them anymore... I read a engine re-builders mag that the machine shop gave me and it was talking about all the flat cams happing, and that it is due to the oils. and yes i know about putting in additives... but who wants to do that all the time when you can fix it with a roller cam?Also, if you use the right oil with the correct amount of ZDP, like Redline, then there is no need for additives. Yes, you will pay more for the oil but there are oils out there that adequately provide enough Zinc and Phosphate for flat tappet cams for proper lubrication.
Last edited by Vette79C3; Mar 13, 2009 at 10:02 AM.
Race Director
Joined: May 2003
Posts: 10,956
Likes: 409
From: California
ok.. heres the scoop... My first build I had a RPM flat tappet, 800 miles on rotilla... cool... Changed to mobile 1, 200 miles later lobes are gone.
Yes I know now that there are special oils with zinc and so forth but they are just that, specialty oils. All new cars built today use Roller cams for this reason. So yes I would NEVER build an engine again not using a roller cam. 5-8K$ lesson learned. As far as the roller rockers, yes a full roller rocker is obviously better than a roller tip, but we are also talking about geometry and how it affects valve guides and longevity of the engine, and 1.5 are the way to go... With full roller rocker. IMHO.
Yes I know now that there are special oils with zinc and so forth but they are just that, specialty oils. All new cars built today use Roller cams for this reason. So yes I would NEVER build an engine again not using a roller cam. 5-8K$ lesson learned. As far as the roller rockers, yes a full roller rocker is obviously better than a roller tip, but we are also talking about geometry and how it affects valve guides and longevity of the engine, and 1.5 are the way to go... With full roller rocker. IMHO.
Drifting
Joined: Aug 2005
Posts: 1,682
Likes: 3
From: League City TX
There have been millions of engines built by the car manufacturers with 1.6, & 1.7 ratio rockers.
There is no reason to fear a 1.6 rocker.
There is no reason to fear a 1.6 rocker.
Last edited by DRIVESHAFT; Mar 13, 2009 at 11:33 AM.
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09