meeklay812

iTrader: (6)

I'm newer to the FI world and have been doing a lot of reading to brush up on the basics. I have a fully stock internal LS1 out of a 2000 with 54k miles and all bolt ons.

Before I put on a D1SC kit, I plan on upgrading to a LS6 intake with a p&p TB, along with a blower cam (Speed Inc SC2 or Futral F7) with supporting valvetrain components.

My question is, while I'm already in there, should I replace my stock 241 heads with some 243's or 317's in prep for the boost? Looking to run 7-8 lbs with the stock internals to get around ~550hp. Is it worth it for a street application with my power goals in mind, or will the 241's be okay?

Thanks in advance for the help!

conan

iTrader: (5)

There is nothing wrong with 241 heads and boost, they will do just fine. Also save your money on the P/P TB not worth it for what your doing. I would recommend pulling the heads and installing MLS gaskets and ARP head studs.

meeklay812

iTrader: (6)

Perfect, $$ saved for other components! I was just going put on the p&p TB when I do the LS6 intake just for the increased throttle response, but its not needed with a with a D1SC?

I believe the MLS gaskets are .051" compressed. What would that put the compression at with untouched 241s?

conan

iTrader: (5)

I get 10.05:1 compression with a 3.910 gasket bore and a compressed thickness of .054 for the GM MLS gasket. You could do a Cometic .040 gasket and bump to 10.3:1 compression, but the extra $$$ for the Cometics isn't really worth it. Keeping the compression up will help keep a crisp throttle response out of boost.

With all the extra money you just saved I would also look into a meth injection kit to help keep the stock bottom end alive as well.

007FJ

iTrader: (28)

I'd consider Tick and Little John for the cam purchase as well.

Cam Motion is what I am running. If I ever change mine I may switch to a low lash solid roller from them but my car isn't a daily driver.

meeklay812

iTrader: (6)

Still weighing my cam options a bit. My build will be a street weekend warrior, not a daily driver. What stage cam motion blower cam do you have, and how is it for the street?

Everyone says great things about the EPP cam, but I think I'm looking for something a bit smaller, which brought me to the Futral F7 or the Speed Inc SC2.

007FJ

iTrader: (28)

I missed your reply. I don't even know which cam is in mine. Jason at J & J Speed shop in New York spec'd it. They have a very good reputation up there and I am sure he would talk about ordering you one just as the guys I mentioned earlier. Cam Motion directly has great feedback on here too.

meeklay812

iTrader: (6)

What cam characteristics should I be looking for to provide the best low end torque for the street. I understand that a good blower cam should be a split pattern with roughly 8 degrees more duration on the exhaust side, ground on a 114-115LSA and no overlap. This will be primarily a weekend warrior and am looking for the most low end torque as possible.