do you guys generally replace the cam and crank gear when replacing the chain? the parts guy recommeded it, not sure its necessary tho.. they look fine, do most people just replace the entire set or just the chain?

 

Yes,they dont cost that much.

 

I always replace the whole set. Putting a new chain on worn gears makes no sense to me.

 

Can't argue with that.

 

gears aren't really worn at all... car has 61k on it, just didnt wanna put the same chain on when reassembling engine after building the shortblock. I'm just gonna replace the whole set anyway though, its not that much in a set, i just didnt realize I could buy it as a set at first.

 

Cheap insurance..

 

61k? Trust me, the gears are worn, even if you can't seem to see it.

 

The stock LT1 timing chain is okay for stock.

But for nitrous or a blower or high performance, it won't cut it.

 

hmmm... What do you recommend then?? I've heard the lunati timing set is crappier than stock. I originally bought the 9-3145 cloyes double roller, but then returned it after realizing it wouldn't work with my distributor and that I would have to move to a 95 up vented opti, 95 timing cover, new harness, hoses, etc, etc. which adds up to around $350-400 plus the double roller I bought, which is rediculus being it adds up to $450-500 to run a double roller timing set. Only other option I saw was the cloyes heavy duty timing set which is also a singe chain, non roller and that costs about $365, grr... I've seen some pretty sick lt1/ls1's running the stock timing set, but it would be nice to have some reassurance with the cash thats going into the car, is there any other options besides stock timing set for a reasonable price (aka not 400 bucks). The following is being used on the car:

-LE 1 heads (flow 262/183)

-LT1 ported intake with 58mm throttle bores

-LE 1 cam (not suppose to disclose specs, but to give you an idea, mid 220s duration, over .570 lift, less than 110 lobe separation angle)

-ARP head bolts

-ARP 7/16 rocker arm studs

-ARP polylocs

-Comp 5/16 flat pushrod style guideplates

- NGK TR6 plugs

-COMP chromoly pushrods

-CSR Electric waterpump

-3600 Vigilante converter

-3.73 gears, on 10 bolt

-Transgo Shift kit

-hypertech 160 degree termostat

-groty 1 3/4 long tube headers

-summit X-pipe kit

-BBK 58 mm TB

-1.6 Comp pro mag 7/16 Rocker arms

-SVO 42 lb/hr injectors

-Cold Fusion Nitrous kit***(150 shot)

-MSD window switch

-Cold Fusion fuel pressure safety switch

-walbro 255 fuel pump

-B&M trans cooler

-LT4 KM

-MSD ignition Coil

-UMI Lower Control Arms

-UMI panhard bar

-Moroso cold air intake

-BFG drag radials

-Clevite H main bearings

-Clevite H rod bearings

-Clevite cam bearings

-ARP main bolts

-Total Seal file to fit, ductile iron piston rings

-Moroso high volume oil pump


i'm expecting to make 475-500 at the wheels with N20, and around 375 N/A. obviously stock timing set isn't the ideal way to go but is there any other reasonable ways to go?

 

If you want to make 475-500 rwhp you would be nuts to run a stock chain. Its gonna cost a lot more than $400 to fix stuff when that stocker breaks.

 

just can't seems to convince myself to spend $400 for a single chain non roller timing set... I can't imagine a single chain non roller being all that good, and overall $500 to run the cloyes orginally $90 double roller timing set is more than exccessive. Options seem a little limited here with these name brands with the splined opti, only got 3 timing sets to choose from... the lunati (which is worse than stock), the cloyes which is also a single non roller, which I can't seem to find a lot about being that no one acutally pays that much for a single non roller timing set, and then there is a comp cams double roller for $500 which might work, but not sure it will work. I spent about $750 for my complete heads, can't seem to figure out another $500 is worth it for a timing set with my application. I mean ****, i could rebuild my heads and replace pistons when the timing chain breaks and the valves hit the pistons for around $500.

 

Ya can't fix the damage from a broken chain for anything like $500.00.
The Cloyes LT-4ED IS a roller and according to them is as,or stronger than a double roller based on pivot pin size.

 

Didn't know that, let me look into that

 

wait, what is the cloyes LT-4ED on??? its not on the 9-9100, it says that is a "single non roller" timing chain.

 

LT-4