Undersized timing chains.

[Recklessrob]

I'm looking for a ,002" or .003" under sized roller timing set
for a 109 buildup that I'm doing. The problem is that nobody
seem to have them. I've called nearly every Buick vendor to
no avail. Who has them ?

 

[notacarlo]

I'm looking for a ,002" or .003" under sized roller timing set
for a 109 buildup that I'm doing. The problem is that nobody
seem to have them. I've called nearly every Buick vendor to
no avail. Who has them ?

I may be an idiot, but why?

 

[Mike Licht]

we have .004 under rollmaster chains in stock ready to ship today
Mike

 

[cruzn57]

because.

I may be an idiot, but why?

when you align bore the block, it makes the crank closer to the cam, thus needing a shorter timing chain.

 

[turbo 250]

i ordered a .004 timing chain from full throttle speed and it was a great product and fast shipping.you will be happy with the roller master chain

 

[Recklessrob]

we have .004 under rollmaster chains in stock ready to ship today
Mike

.004 would be too tight. the actual size needed would be .0035" due to the line bore for the billet mains. I had called your buisness first because thats where I had bought my last timing chain. I'd hate to pay to have the block line bored again because I can't find a timing chain to fit it.

 

[Pronto]

Hey Rob, hows it going? Long time no see.
Rollmaster makes a .002 and .004 according to their catalog. Will the .002 be too loose?
http://romacusa.com/Rollmaster_Applications.pdf
Here's their distributors list.
US_Dist

 

[Recklessrob]

Hey Rob, hows it going? Long time no see.
Rollmaster makes a .002 and .004 according to their catalog. Will the .002 be too loose?
http://romacusa.com/Rollmaster_Applications.pdf
Here's their distributors list.
US_Dist

I've tried to find the .002", but nobody seems to have them. I was hoping to have my engine back in the car in time for the NEBRA BBQ, but its not looking good.

 

[bison]

.004 would be too tight. the actual size needed would be .0035" due to the line bore for the billet mains. I had called your buisness first because thats where I had bought my last timing chain. I'd hate to pay to have the block line bored again because I can't find a timing chain to fit it.

You may find that you need a .006 under. Ive played this game before. You need to baseline it with a new chain to know for sure which way to go. If the crank is allowed to thrust forward it would be like shortening the chain. Keep that in mind too.

 

[gnxtc2]

Page 84 http://www.taperformance.com/PDF/TAPerformance_Catalog.pdf

Oh BTW: The chain size does not change, it's the gears that are bigger which makes the chain tighter

Billy T.
gnxtc2@aol.com