Double Roller timing chain
07-04-2005, 10:18 AM
#2
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I have one, it's mostly just good for peace of mind. I had a valve lock come undone in my engine a few days after my cam install and trashed my engine. I had reused the stock timing chain because it only had 35k miles on it and when we took the timing cover off the chain had a lot of slack in it even though we tightened it as much as was safe when we reinstalled it. Now that the double roller is in there I know for a fact it's not going to slip or stretch out. That peace of mind is very nice to have when you're spinning to 7k.
It's not a necesarry part, I'm sure an aftermarket single chain would work just as well for you but I wasn't going to take anymore chances.
The only thing you need to be concerned about with the double roller is whether or not you have an aftermarket crank pulley. The older ASP pullies required machining to work with the double roller timing chains, the more recent ones however, come pre-machined to fit the double rollers as well.
It's not a necesarry part, I'm sure an aftermarket single chain would work just as well for you but I wasn't going to take anymore chances.
The only thing you need to be concerned about with the double roller is whether or not you have an aftermarket crank pulley. The older ASP pullies required machining to work with the double roller timing chains, the more recent ones however, come pre-machined to fit the double rollers as well.
07-06-2005, 02:34 AM
#7
Originally Posted by LS1Maniac
I have one, it's mostly just good for peace of mind. I had a valve lock come undone in my engine a few days after my cam install and trashed my engine. I had reused the stock timing chain because it only had 35k miles on it and when we took the timing cover off the chain had a lot of slack in it even though we tightened it as much as was safe when we reinstalled it. Now that the double roller is in there I know for a fact it's not going to slip or stretch out. That peace of mind is very nice to have when you're spinning to 7k.
It's not a necesarry part, I'm sure an aftermarket single chain would work just as well for you but I wasn't going to take anymore chances.
The only thing you need to be concerned about with the double roller is whether or not you have an aftermarket crank pulley. The older ASP pullies required machining to work with the double roller timing chains, the more recent ones however, come pre-machined to fit the double rollers as well.
It's not a necesarry part, I'm sure an aftermarket single chain would work just as well for you but I wasn't going to take anymore chances.
The only thing you need to be concerned about with the double roller is whether or not you have an aftermarket crank pulley. The older ASP pullies required machining to work with the double roller timing chains, the more recent ones however, come pre-machined to fit the double rollers as well.
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07-06-2005, 02:35 AM
#8
TECH Senior Member
Overkill on average street setups.
LS2 is a cheaper alternative and there is always the J-WISS (C5-R chain)
Not to mention, I'm not too crazy about how tight they are. The looseness of stock chain is not because it is flimzy, it is in order not to wear the front cam bearings. LS1 chain had it, LS2 chain has it too. BTW J-WISS has it too (on mine)
A J-WISS is the Le Mans chain, so do you think they would put a flimzy chain on there??? I think not.
LS2 is a cheaper alternative and there is always the J-WISS (C5-R chain)
Not to mention, I'm not too crazy about how tight they are. The looseness of stock chain is not because it is flimzy, it is in order not to wear the front cam bearings. LS1 chain had it, LS2 chain has it too. BTW J-WISS has it too (on mine)
A J-WISS is the Le Mans chain, so do you think they would put a flimzy chain on there??? I think not.
07-06-2005, 07:18 AM
#10
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Hi Folks
I installed a double roller timing chain just to be on the safe side. I had the engine a part, so why not change the timing chain - the other one only had about 3200 miles on it. The double timing chain has its own setup issues; you have to shim oil pump which makes getting the oil pick line hard to get in place and you need to grind the timing chain cover – clearance issue. Otherwise it was easy - now if I change the Cam (May do in the future), the timing chain is in place to handle what ever I want.
Bill
I installed a double roller timing chain just to be on the safe side. I had the engine a part, so why not change the timing chain - the other one only had about 3200 miles on it. The double timing chain has its own setup issues; you have to shim oil pump which makes getting the oil pick line hard to get in place and you need to grind the timing chain cover – clearance issue. Otherwise it was easy - now if I change the Cam (May do in the future), the timing chain is in place to handle what ever I want.
Bill
07-06-2005, 01:57 PM
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Originally Posted by eallanboggs
I'd like to know how you have a keeper come out? That's scary stuff. Was it damaged when it was installed or did it fail under load?