update on my 402 build
05-29-2008, 05:36 PM
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update on my 402 build A few things
I ordered my cam this morning from Thunder Racing... its a custom cam patrick G speced out... I dunno if I should list the cam...
Also I was told maybe why my caddy lifters failed was because my lifter trays were old and maybe my lifters turned in there....
So anyways, I am gonna now go with either the comp R lifters, the comp lifters 850-16 or just LS7 lifters... which would be best?? My new 402 has new lifter trays.... Im gonna make sure the lifters all roll freely and soak them in oil for 24 hours.... anything else I should do for NO failure?!
Also now that one of my caddy lifters has mushroomed in the old LS1 block....What can I do to reuse my old LS1block? can I just drill out the lifter, rehone the lifter guide and use a sleeve? who would do this??
Lastly, I saw some nicks in my other pistons, AFTER my head cam swap, could i also have bent a valve? I dont see how I floated a valve with the new beefy springs.... the reason why Im concerned if I bent a valve is, I am REUSING my PRC 5.3 heads and the valves do look straight, but I doubt I can tell just by looking at them....
Im gonna have a couple of pics of the lifter stuck in the block, a broken lifter, junk in the oil pan and the nicked pistons from somehow floating a valve.. and cam lobe damage
I ordered my cam this morning from Thunder Racing... its a custom cam patrick G speced out... I dunno if I should list the cam...
Also I was told maybe why my caddy lifters failed was because my lifter trays were old and maybe my lifters turned in there....
So anyways, I am gonna now go with either the comp R lifters, the comp lifters 850-16 or just LS7 lifters... which would be best?? My new 402 has new lifter trays.... Im gonna make sure the lifters all roll freely and soak them in oil for 24 hours.... anything else I should do for NO failure?!
Also now that one of my caddy lifters has mushroomed in the old LS1 block....What can I do to reuse my old LS1block? can I just drill out the lifter, rehone the lifter guide and use a sleeve? who would do this??
Lastly, I saw some nicks in my other pistons, AFTER my head cam swap, could i also have bent a valve? I dont see how I floated a valve with the new beefy springs.... the reason why Im concerned if I bent a valve is, I am REUSING my PRC 5.3 heads and the valves do look straight, but I doubt I can tell just by looking at them....
Im gonna have a couple of pics of the lifter stuck in the block, a broken lifter, junk in the oil pan and the nicked pistons from somehow floating a valve.. and cam lobe damage
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05-29-2008, 08:14 PM
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I still dont know how the lifter failed...
all I know is, look at the pics, look at that piece of metal that was in my oil pan and came off of my lifter.. also look at my lifter and see how its stuck in there and its mushroomed in there and look at my cam lobe damage...
the 2 things i heard do far is, I didnt clean the lifters in solvent, and I didnt change my lifter trays....
05-29-2008, 10:55 PM
#11
From past experiences, get your valve replaced, otherwise down the road you will be sorry... One quick note, its possible some of that piston/valve damage was done when the lifter failed, is it the same part that the lifter failed (mushroomed in the lifter bore)? That could have caused some unsightly valve damage...
BUT, make sure you replace that valve, or any other valve that may have kissed a piston, TRUST ME MAN, i made the SAME mistake before and ended up with a brand new 427 lol. There was no recovering ANYTHING after the valve head broke off and demolished my entire motor.
BUT, make sure you replace that valve, or any other valve that may have kissed a piston, TRUST ME MAN, i made the SAME mistake before and ended up with a brand new 427 lol. There was no recovering ANYTHING after the valve head broke off and demolished my entire motor.
05-29-2008, 11:03 PM
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From past experiences, get your valve replaced, otherwise down the road you will be sorry... One quick note, its possible some of that piston/valve damage was done when the lifter failed, is it the same part that the lifter failed (mushroomed in the lifter bore)? That could have caused some unsightly valve damage...
BUT, make sure you replace that valve, or any other valve that may have kissed a piston, TRUST ME MAN, i made the SAME mistake before and ended up with a brand new 427 lol. There was no recovering ANYTHING after the valve head broke off and demolished my entire motor.
BUT, make sure you replace that valve, or any other valve that may have kissed a piston, TRUST ME MAN, i made the SAME mistake before and ended up with a brand new 427 lol. There was no recovering ANYTHING after the valve head broke off and demolished my entire motor.
So is it foolish to inspect the vale without taking out the retainers and valve springs? can it be done???
05-29-2008, 11:05 PM
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So I guess LS7 lifters it is??
My cam is something of a 238/244 nature with low .61x lifts and 113lsa + advanace, so 111 icl
05-29-2008, 11:47 PM
#14
Dude, trust me on this one.... You can inspect all you want, the fact is the valve smacked into the piston...irregardless of whether it looks ok or not, IT HAS TO BE REPLACED. You are just asking for trouble down the road, and ESPECIALLY since you're getting a brand new motor you better have all of your bases covered.
Best of Luck,
Adrian
Best of Luck,
Adrian
05-30-2008, 02:04 AM
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Lets see I was told going with caddy lifters, which are about $275 was overdoing it, but I still did it.... Now I wish I originally went with the LS7s for only $130. Morrels are about $495, I dont think me running a small/mild cam in a tame 402 that is lucky if it sees 500rwhp will need something like morrels....
05-30-2008, 02:06 AM
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Dude, trust me on this one.... You can inspect all you want, the fact is the valve smacked into the piston...irregardless of whether it looks ok or not, IT HAS TO BE REPLACED. You are just asking for trouble down the road, and ESPECIALLY since you're getting a brand new motor you better have all of your bases covered.
Best of Luck,
Adrian
Best of Luck,
Adrian
Well first of all, I am gonna replace them, most probably... But if the valves ever came out and they were all in spec, I dont need to replace them... because its in spec and although I know the history of it, im sure engine builders will agree with me on this and keep it if it meets specifications..
Damnit, so now I gotta also get some valves.
05-30-2008, 02:08 AM
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This is just eating my money like nothing...
6 months ago I was just gonna do head/cam on the ls1
3 months ago I got the 402 but was gonna use the torquer 3 and 5.3 heads
now I also need a FAST 92/92, a new cam, new lifters, MAYBE new pushrods(I have the 7.400") and now new valves... what else is next? new valve springs? new oil pan??!
damn this build!!
Im happy, but im also broke!
6 months ago I was just gonna do head/cam on the ls1
3 months ago I got the 402 but was gonna use the torquer 3 and 5.3 heads
now I also need a FAST 92/92, a new cam, new lifters, MAYBE new pushrods(I have the 7.400") and now new valves... what else is next? new valve springs? new oil pan??!
damn this build!!
Im happy, but im also broke!
05-30-2008, 07:21 AM
#19
Lets see I was told going with caddy lifters, which are about $275 was overdoing it, but I still did it.... Now I wish I originally went with the LS7s for only $130. Morrels are about $495, I dont think me running a small/mild cam in a tame 402 that is lucky if it sees 500rwhp will need something like morrels....
Probably not. How big your motor is has nothing to do with the ramp rates of the cam. I know nothing about your cam, so this is just a guess. I think you made the perfect choice with the caddy racing lifters.
05-30-2008, 07:29 AM
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Would you consider that cam small/mild in a stock cube motor??
Probably not. How big your motor is has nothing to do with the ramp rates of the cam. I know nothing about your cam, so this is just a guess. I think you made the perfect choice with the caddy racing lifters.
Probably not. How big your motor is has nothing to do with the ramp rates of the cam. I know nothing about your cam, so this is just a guess. I think you made the perfect choice with the caddy racing lifters.
OK when I had the Torquer 3 in my 346 LS1 and PRC 5.3 heads stage 2.5... It felt like too much cam for me for a DD... Maybe it was just me, I only drove it for a day, plus it was rainy, my clutch was sticking, aluminum FW... etc... so I cant give a solid opinion on it, but that felt like too much cam for me, although the Tv3 is usually considered a medium cam...
Now, in the 402, Im using the same heads ( I have to replace a couple of valves probably) and Im gonna use a 238/244 cam 113 ls1 +2 advance, low .61x lifts... its a tad smaller in a 402 than the Torquer 3 is in the LS1, and my static compression is bumped up more than before...
11.1 :1 vs 10.75 :1 .... Plus Im gonna get me a fast 92 combo
with that being said...
The caddy lifters were the choice before, in my LS1. They failed on me... Now I have 14 lifters left from 16 and I dont plan on re using them.... when I said I went with them, I was talking about 6 - 7 months ago when I built my LS1 H/C car, but now thats totally a non running engine...
What Im gonna go with is the LS7 lifters for my 402..... I think its a decent choice. when I asked Patrick G to spec out my cam, I said something thats gonna be soft on the valve springs, I think theyre the X-something lobes that arent that agressive... So it shouldnt be too radical..
edit:
I wont be back on probably for a good 7 - 8 hours. I havent slept yettt!!!