Thread: Brodix IK Heads.

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Dean says he cannot post on the forum, so sent me the following visitor message....

Hi Tech, For some reason i can't post, I PM the administrator to see whats up Regarding my thread on the Brodix IK heads. this is what i have so far.
350 bored .040
Flat top pistons 4 valve +5.00
piston to deck height .005
Lunati 270/278 Hydraulic roller, @50 219/227 515/530
Head gasket .036 thick-- 4.165 bore
Edelbrock performer intake
street demon 625
Was thinking to keep around 9.5:1 for my cam size, and to keep header heat down a little.

I sent him this reply....

At 9.49:1 SCR with 72cc heads, I get 8.345:1 DCR on the Keith Black calculator. Using the 70cc heads, I get 9.69:1 SCR and 8.518:1 DCR, perfect for pump gas using the tight squish that you have engineered into the motor. I strongly urge you to use the 70cc heads.
Let me add some info that you will want to write down and keep for later....
Cam number Lunati 20560721. With the cam installed straight up, neither advanced nor retarded, intake opens 3.5 degrees BTDC, intake closes 35.5 degrees ABDC, exhaust opens 42.5 degrees BBDC, exhaust closes 4.5 degrees ATDC.......
Intake centerline 106 degrees, exhaust centerline 118 degrees, lobe separation angle 112 degrees.
Cam will want a 2500 stall converter, which is perfectly streetable. This will be a great motor, congratulations on your choices.

The motor will want more intake manifold, a high-rise, dual-plane such as the Edelbrock Performer RPM 7101 or the Weiand 8150 Stealth. You can also find this design used, for a little less money, on craigslist, ebay, racing junk, etc. under Holley 300-36 and Weiand 8016. I advise against using the Edelbrock 7501 RPM Air Gap due to driveability issues in colder climes.

Use a 14" x 4" air filter assembly to allow the motor to breathe.

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