[ekacpuc]

I'm just kinda wondering if I got my 454 to 9.6:1 if I could run Lunati's 60212 camshaft on 89 or 90 octane fuel. Be Iron heads...


Other option is 9.3:1, actually the one I'd pref to do.. I'm just not sure if the speed pros will clear my valves.


The first choice is with KB Hyper -12cc dome pistons and the 2nd is Speed pro -10.5cc pistons. Not sure if the speed pro's will have deep enough valve reliefs, I hear they lack a little.

Be 0 deck .040 gasket BTW

I may end up with forged flat tops and a much smaller cam but... I'd really like to build a monster. Will be going into a 77 C10 with a TH350 and a 12 bolt with a posi and 3.73s plus if I used this cam I'd go 2800 rpm stall. I plan on building a 4 link rear end later too.. Won't ever haul or tow stuff.


Greg

[ekacpuc]

Wow... This forum use to be great! No answers and my post moved... Seems that motor questions should be asked in the basics forum?


Greg

[F-BIRD'88]

You'd best plan on needing to run the best premium 92+ octane pump gas you can buy there locally, if you want max performance and reliability from your BBC.

Crap gas is just that.

If you re really interested in making big street power for your truck
get one of the Lunati VooDoo Solid street rollers.
The heavy valvetrain of a BBC works much better with a solid lifter
street roller than the HYD's. Stronger above 5000 rpm in BBC's.

Lunati Voodoo cam #60232 is sweet.

[WDCreech]

Originally Posted by ekacpuc

Other option is 9.3:1, actually the one I'd pref to do.. I'm just not sure if the speed pros will clear my valves.

The first choice is with KB Hyper -12cc dome pistons and the 2nd is Speed pro -10.5cc pistons. Not sure if the speed pro's will have deep enough valve reliefs, I hear they lack a little.

Be 0 deck .040 gasket BTW

Have you ever heard of having the valve reliefs in the pistons "fly cut"?

[cobalt327]

Originally Posted by ekacpuc

I'm just kinda wondering if I got my 454 to 9.6:1 if I could run Lunati's 60212 camshaft on 89 or 90 octane fuel. Be Iron heads...


Other option is 9.3:1, actually the one I'd pref to do.. I'm just not sure if the speed pros will clear my valves.


The first choice is with KB Hyper -12cc dome pistons and the 2nd is Speed pro -10.5cc pistons. Not sure if the speed pro's will have deep enough valve reliefs, I hear they lack a little.

Be 0 deck .040 gasket BTW

I may end up with forged flat tops and a much smaller cam but... I'd really like to build a monster. Will be going into a 77 C10 with a TH350 and a 12 bolt with a posi and 3.73s plus if I used this cam I'd go 2800 rpm stall. I plan on building a 4 link rear end later too.. Won't ever haul or tow stuff.


Greg

Regardless of the cam or pistons, the P to V clearance should always be checked during the mock-up phase of the build. Use some modeling clay (NOT play doh) laid across the top of the piston, rotate the engine a couple revolutions, then dissect and measure the indentations the valves made into the clay.

A page on it- http://www.iskycams.com/camshaft.php

HERE is a list of valve train points to check.