New morels, change pushrod length ?
Thread Starter
Joined: Feb 2010
Posts: 6,755
Likes: 292
From: Fort Worth TX
New morels, change pushrod length ? got some 6504 lifters ( thanks Straub ! ) but cant find any info if I can keep the stock length pushrods or not....anybody with experience ???
Thread Starter
Joined: Feb 2010
Posts: 6,755
Likes: 292
From: Fort Worth TX
I was mainly wondering if someone has already used these and did the measuring thing....I did not know that the 6504 replaced the 5312....so all new to me
I have an older set of Morel lifters, don't know part number but they were taller and required a shorter pushrod for that reason. Mine were designed for higher lift to prevent oiling issues that can occur with the stock GM lifters.
I would measure.
I would measure.
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Knowing sj the little I do i'm sure he planned to measure all along, I'm sure he just wanted some sort of answer while waiting for emails and the length checker.
I'm curious what you find man, post up when you figure it out.
I'm curious what you find man, post up when you figure it out.
Thread Starter
Joined: Feb 2010
Posts: 6,755
Likes: 292
From: Fort Worth TX
finally got it measured...boy is measuring time consuming......with preload added I need a 7.415.....but you cant get that size.... so its stock 7.4 for me
Thread Starter
Joined: Feb 2010
Posts: 6,755
Likes: 292
From: Fort Worth TX
since they told me 50 - 60 preload....i split it to 55
i went and got some comp cams 7638-16 from summit....their new store is 30 mins from me ! ( have to save up for those nice taper ones like you got nuts
)
measured them all and 15 of them are 7.410 to 7.415....one odd ball at 7.420
engine wont be running til next summer
i went and got some comp cams 7638-16 from summit....their new store is 30 mins from me ! ( have to save up for those nice taper ones like you got nuts
) measured them all and 15 of them are 7.410 to 7.415....one odd ball at 7.420
engine wont be running til next summer
Last edited by sjsingle1; Dec 31, 2017 at 07:27 PM.
Thread Starter
Joined: Feb 2010
Posts: 6,755
Likes: 292
From: Fort Worth TX
I knew advertised length was not the same as measured length......but i thought advertised length was shorter ....not longer
so i really did get close to my 7.415 that i measured and need....off to summit to exchange that odd ball size one
better to have to short than to long ?
so i really did get close to my 7.415 that i measured and need....off to summit to exchange that odd ball size one
better to have to short than to long ?