At what level did your heads lift?
10-01-2012 | 10:40 PM
#22
just found out recently from mechanic i was seeping coolant , i,m guessing only at the track 144mph @4050 pds, 20psi, lq9 iron totally stock 241 heads, arp head bolts, cometic gaskets !!!! i was wondering where that coolant was coming from haha thought i had a leak in a hose somewhere !!! in getting 0.0850 thick deck heads and head studs with new setup now!!!!
Where was the coolant coming from? Or maybe a better way to word it is where did he find the coolant?
10-02-2012 | 12:23 AM
#23
On The Tree
Joined: Jan 2012
Posts: 131
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From: sydney australia
as said i had noticed coolant was sprayed over engine bay not much but noticeable if you looked close enough !!! down near chassis rails etc more on drivers side as pass side would have hit more manifold /dump pipe and melted !!!! guessing he would have been able to tell looking at gaskets/ heads and said they were leaking from both sides !!!! also thats why i qouted mph and weight to give an idea of hp !!!! cheers
10-02-2012 | 08:11 AM
#25
On The Tree
Joined: Jan 2011
Posts: 177
Likes: 3
From: chicago
as said i had noticed coolant was sprayed over engine bay not much but noticeable if you looked close enough !!! down near chassis rails etc more on drivers side as pass side would have hit more manifold /dump pipe and melted !!!! guessing he would have been able to tell looking at gaskets/ heads and said they were leaking from both sides !!!! also thats why i qouted mph and weight to give an idea of hp !!!! cheers
10-02-2012 | 09:30 AM
#27
02-20-2013 | 04:38 PM
#30
On The Tree
Joined: Jun 2009
Posts: 128
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Broke a 5.7l block @17psi, 720whp 740wtq , arp studs tourqed to 80lb, cometic head gaskets stock 241s, 15* timing... Now 6.0l l92 heads arp studs cometics, same stud tq on 16psi same power same timing no issues....
02-20-2013 | 06:09 PM
#31
9 Second Truck Club
iTrader: (17)
Joined: Sep 2006
Posts: 3,672
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From: Colorado Springs, Co/ Central, Ca
With 22 psi 18* timing 317 heads std GM truck gaskets started to push a little. That was a studded 2001 block with the long head blts. 2006 block with short studs, 26 psi with 18*, 317 heads and ls9 gaskets no water pushed, and not a hint of psi in cooling system. I think the ls9 gaskets make a huge difference as well as the short head stud.
