416 LS3 Build Underway (Pics inside)
#267
TECH Addict
iTrader: (66)
Here's a first start up clip. Untuned and just open y pipe. And yes it's what I run. I have the 2" long tubes with 3.5" collectors to the kooks 3.5"-4" stainless y pipe to a 4" mufflex catback and with a borla xr1 oval muffler. Oh and a manual 4" cutout.
Here's a clip with the catback on.
And a dyno pull through the muffler.
Pull with cutout open
#269
TECH Addict
iTrader: (66)
Thanks man! She's my baby. The 2" kooks fit a ton better than a set of 1 7/8" ARH. I have a regular BMR k member so they fit awesome. I had a set of 1 7/8"-2" kooks a few years back. Had them on the car with the stock k member. Only clearance issue I had was the pinch weld on the k member was rubbing one of the primaries on the passenger side. Just hit it with a grinder and ground it down a good bit. Fit good after that.
#270
Thanks man! She's my baby. The 2" kooks fit a ton better than a set of 1 7/8" ARH. I have a regular BMR k member so they fit awesome. I had a set of 1 7/8"-2" kooks a few years back. Had them on the car with the stock k member. Only clearance issue I had was the pinch weld on the k member was rubbing one of the primaries on the passenger side. Just hit it with a grinder and ground it down a good bit. Fit good after that.
#279
Wow, this MAST LS7 head and Morel 5425 lifter combo is going to require some long *** pushrods. I used a Comp pushrod checker that I previously used on my LT1, and practically bent it due to full extension. So I have to order a new set of checker, which I just did just now. It looks like its going to be in the 8.800"-8.900" or so length. That's a big difference from stock length 7.400".
#280
Launching!
iTrader: (8)
Join Date: Oct 2004
Location: NJ/AZ
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What are you doing with the DOD holes? Most guys i've talked to suggested tapping those holes with a 1/8-27 npt tap (rather then relaying on the orings in the valley cover) to be sure they are and stay completely sealed.
I just turned my block upside down on the engine stand and drilled them out with a 11/32 drill and tapped them.No worries about getting metal shavings in the block this way.
I just turned my block upside down on the engine stand and drilled them out with a 11/32 drill and tapped them.No worries about getting metal shavings in the block this way.