Top End Advice for 327 Build
 

Hey guys, I'm new to the forum so bear with me. My father has a 1968 Camaro that he has owned for 30+ years. Around 20 years ago he started to redo the car but one thing led to another and it has been sitting ever since waiting to be put back together. I am taking over the project and plan to get the car on the road this year. However I can use some advice along the way as these cars aren't necessarily in my wheel house.

So my dad had the transmissions and engine rebuilt 20 years ago. I want to freshen up the 327 with a new top end. The only info I was able to get on the motor was that it was bored out an unspecified amount. The head casting number is 3946818, the block casting number is 3914678, and the intake casting number is 8919801. I want the car to be a fun yet driveable street car. I don't care about retaining a factory look. I am wanting to do aluminum heads. I am leaning towards racing head services pro action heads for roller cams up to .600" lift, 180cc runner volume, and 64cc combustion chamber. Pro Action? Small Block Chevy Aluminum Cylinder Head (23° Valve Angle)

I'm not too sure about what cam to use. It seems that a lot of people recommend the roller L79 cam. Is there any other cams I should look into? I would like an aggressive sounding idle, but drive ability and low end power is more important to me.

As for intake and carb choice, I haven't made any decisions so am recommendations you guys have would be greatly appreciated.

Thanks guys!

Typically, aggressive sounding and street-friendly are two different cams. That lumpy sounding cam comes from short lobe separation. Like 106. However, more street friendly cams start at 110. Also, lumpy cams usually have poor low end torque.

There's nothing wrong with RHS. They've been around a long time. However, you might consider a top-end kit from Edelbrock, Trick Flow, and others. All the components are matched by the manufacturer and will work well together.

Here's an example of one of the top end kits.
https://www.summitracing.com/parts/e...yABEgL2s_D_BwE

I would second that, they've done the research for you already and matched up parts that have been proven to work well together.

Yep, what they said. The big companies have done their homework and have a good idea what will work best in most cases. I would love to add that same kit to my little 327, 400HP is good fun for a street car.

I just built a 327 .30 Edelbrock Performer RPM motor (twice now) I had one in my '73 RS LT and it was just bad ***. Now I'm hoping to drop the car down this weekend and take if for a test run. I have older (fresh) Camel hump heads, but the rest of the RPM platform. It sounds so nasty I can't wait to break it in. Hot August Nights is so close I can taste it. =)
Good luck with whatever you pick, but these guys are right when they say the big companies have already spent a lot of time and $$ to figure out what works and is reliable.