It's close after you buy the jig etc. When I started this build you couldn't get the 1/2" Viper studs, I've used CA625 on several with good luck, I think you can't go wrong either way
@@NorthAvenueRacing You can use ford 351M head studs, instead of the Viper ones, cheaper, but not same alloy. Yeah, if you buy the jig, but my local shop will drill and tap for 250.00, with cnc.
Haven't had an issue with LS9 gaskets and ca625's yet on my other builds. I like MLS gaskets instead of copper since I keep water since this is a drag and drive car
@@NorthAvenueRacing I keep water, too. O ringed and Flatout RCC gaskets. I'd rather blow a copper gasket, than a MLS. Doesn't tear the block or heads up, if it blows, like MLS.
I'm honestly not sure. I'll leave that black magic up to my camshaft guy. This one is .632 lift... I believe the bigger thing was duration, the exhaust valve needs to stay open a little longer
Happy New Year.
Just subscribed to your channel.
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Thanks for the update..
You bet
I've seen that 1/2" head studs are the way to go, over the 625s. About same price, total, even after machine work, too.
It's close after you buy the jig etc. When I started this build you couldn't get the 1/2" Viper studs, I've used CA625 on several with good luck, I think you can't go wrong either way
@@NorthAvenueRacing You can use ford 351M head studs, instead of the Viper ones, cheaper, but not same alloy.
Yeah, if you buy the jig, but my local shop will drill and tap for 250.00, with cnc.
Why didn't you O ring or top fuel hoop, this combo, too??
Haven't had an issue with LS9 gaskets and ca625's yet on my other builds. I like MLS gaskets instead of copper since I keep water since this is a drag and drive car
@@NorthAvenueRacing I keep water, too. O ringed and Flatout RCC gaskets. I'd rather blow a copper gasket, than a MLS. Doesn't tear the block or heads up, if it blows, like MLS.
Hey, what chassis shop do you use?
QBR Motorsports, they're right around Chattanooga TN
how much more lift can you get with the 11* heads?
I'm honestly not sure. I'll leave that black magic up to my camshaft guy. This one is .632 lift... I believe the bigger thing was duration, the exhaust valve needs to stay open a little longer
What rods and pistons do you need to use?
My first video in this series goes over the part numbers needed, but 6.125 rod with a custom piston.