Cascade Crew

jchaussee · Member Joined: 14 Nov 2010 Posts: 1318 Location: renton

So I am getting new heads tomorrow on a trade from a guy. The are pro topline s rt or something. They have 167cc runners and are 1.94/76 . Curious if these would be an upgrade to my 882 smogers. These are sitting on my 327. Any info or advice would be appreciated.

Twilightoptics · Posted: Wed Jan 25, 2012 6:24 pm Post subject:

Never heard of a Pro head with that small of an intake runner. Just 180cc or 200+.....

If it has vortec style chambers it will be an upgrade.

Twilightoptics · Posted: Wed Jan 25, 2012 6:24 pm Post subject:

When the heads are off, measure the bore and stroke, make sure it's a 327.

jchaussee · Member Joined: 14 Nov 2010 Posts: 1318 Location: renton

I messed up. They are 1.94/67 not 76. And ya.. seems to be small runners but that's what the said they are when I ran numbers online.

Twilightoptics · Posted: Wed Jan 25, 2012 6:44 pm Post subject:

jchaussee · Member Joined: 14 Nov 2010 Posts: 1318 Location: renton

194 intake
67cc combustion chamber.
And yes 1.50 exhaust

jchaussee · Member Joined: 14 Nov 2010 Posts: 1318 Location: renton

Also can I asumme I will have higher compression with these heads over the 882s

Twilightoptics · Posted: Wed Jan 25, 2012 7:00 pm Post subject:

Ahh that's usually listed as:

Intake Runner CC/Chamber Size

Intake Valve/Exhaust Valve

IE 200cc/64cc 2.02/1.60

If it's 67 cc it's also been worked over and guessed at or measured for an actual 67.

jchaussee · Member Joined: 14 Nov 2010 Posts: 1318 Location: renton

My bad. I am all ass backwards. So here is info on heads. Pro toplone set
2236794167t

Alphius · Posted: Wed Jan 25, 2012 7:36 pm Post subject:

It's the first head on this page.

ProTopline Marine Torker

http://www.flatlanderracing.com/heads_promarinesb.html

EDIT: Same part number on these: Looks like they are old old old but maybe Vortec based chambers?

http://www.flatlanderracing.com/heads_protork.html

jchaussee · Member Joined: 14 Nov 2010 Posts: 1318 Location: renton

Sweet. They look like they will be an improvement

jchaussee · Member Joined: 14 Nov 2010 Posts: 1318 Location: renton

Another question I have is while heads are off, what other areas should be addressed. I have not done a head swap in over 10 years and when I did the last one I just bought a top end gasket kit from a machine shop. Is that the way to go?

jchaussee · Member Joined: 14 Nov 2010 Posts: 1318 Location: renton

So I got heads.. Need rods and rocker arms. I have no clue on how to buy them and make sure I get correct ones. Help.

jchaussee · Member Joined: 14 Nov 2010 Posts: 1318 Location: renton

Anyone??

jchaussee · Member Joined: 14 Nov 2010 Posts: 1318 Location: renton

So I finally am getting ready to bring heads in to ha e them cleaned. I fin looked at them closer. They have double springs and trw guide plates. So I am hoping they have decent valves. Looks like somebody at least put a couple bucks into them.

Twilightoptics · Posted: Tue Jun 19, 2012 8:45 am Post subject:

Pro heads come with that.

With guide plates you need hardened pushrods and non-self aligning rockers.

jchaussee · Member Joined: 14 Nov 2010 Posts: 1318 Location: renton

Cool. Thanks for info. That narrows down my search