Gt40 aluminum head help
Hey guys question all answers much appreciated. I have a Lunati Cam supposedly (stage 2 cam) and I need to know what kind of rod length id need with my gt40 aluminum heads, starting to make a very faint tickin noise. Not Knocking. Cam to big? Rods loose ? Hopefully not lifter. Probaly end up changing the lifters anyways and rods with rocker arms. Anyone no what kind of rods the gt40 use? Here majority are pedestal. Haven't removed anything yet just what the car came with cause I need to order parts before tear down (daily driving car) thanks guys
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No one can tell you what rod length you need. That has to be measured at the time of the build.
That ticking is probly nothing to worry about, the old push rod engines always sound like a sewing machine. Especially if it has roller rockers. But it could also be a leaky exhaust header causing the noise. |
Really?.. I did my rebuild on my bronco 351 and put new rods and lifters in and it was smooth no ticking or anything. What's the difference both being pushrod motors ?
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Also passenger front side has always made that sound when I got the car, no difference in performance or anything. But now the right side front has also developed this ticking sound. So that's why I'm worried. And I'm assuming it has something to do with either a lifter, rod or rocker area.. I'm almost thinking maybe the cam is to big for the valvetrain
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it should not tick like a loose lifter. check the preload, it should be from 1/2 - 1 1/4 turns. if they are in this range and thry are ticking they might be varnished inside or just bad or the cam lobes are going flat. try adding a qt of rislone and drive it for around 200 miles. if they still tick they are bad or the cam lobes are going flat.
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Originally Posted by StangGang702
(Post 8434271)
Hey guys question all answers much appreciated. I have a Lunati Cam supposedly (stage 2 cam) and I need to know what kind of rod length id need with my gt40 aluminum heads, starting to make a very faint tickin noise. Not Knocking. Cam to big? Rods loose ? Hopefully not lifter. Probaly end up changing the lifters anyways and rods with rocker arms. Anyone no what kind of rods the gt40 use? Here majority are pedestal. Haven't removed anything yet just what the car came with cause I need to order parts before tear down (daily driving car) thanks guys
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I did not do the build so I'm not sure what's inside exactly sorry, I kinda want to do my own later but for now just get rid of the ticking noise. I'm assuming there pedestal mount heads just wondering the size maybe the rods are so I can get this ticking out lol
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Originally Posted by StangGang702
(Post 8434458)
I did not do the build so I'm not sure what's inside exactly sorry, I kinda want to do my own later but for now just get rid of the ticking noise. I'm assuming there pedestal mount heads just wondering the size maybe the rods are so I can get this ticking out lol
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Ok cool thank you so much! I pulled the valve cover and there's 1.6 Scorpion Rockers so idk if that helps with anything or not ?
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Originally Posted by StangGang702
(Post 8434768)
Ok cool thank you so much! I pulled the valve cover and there's 1.6 Scorpion Rockers so idk if that helps with anything or not ?
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