Chevy Nova Forum banner
1 - 14 of 14 Posts

· Registered
Joined
·
308 Posts
Discussion Starter · #1 ·
really disgusted here. put the new performer intake on, dry, head ports are "higher" than the manifold. bought this thing not knowing anything about the engine, looking back, hindsight is 20/20, wondered why the intake had big washers on the bolts.how it worked, i don`t know, however, the original air-gap bolt holes were longated. ok, sold the intake. now, trying to find an intake for these "higher" ports, and bolts to a regular small block. so frustrated here,,,,,, i read that the ports are the same as vortec heads? i don`t know. all i found for an intake was like WOT stuff. ,,,,,,,,,,,,,,, are there any intakes for these "higher" ports, which bolt on ? i mean, yes, found a couple, but all for like WOT, i just want to drive it. i really appreciate the info/help!!
 

· Registered
Joined
·
1,158 Posts
If they are actual Pro TopLine cylinder heads....those are very good cylinder heads, better than Dart.
PRoTopline was bought up by Racing Head Service (RHS) and they still sell the heads.

Exactly what intakes have you tried to fit??
Have you researched the head numbers to see which version of the head you have?? They made a range of sizes, from stock replacement to Full Race.

Performer RPM, not Air Gap.....Or Weiand Stealth....should be an easy fit. ideal intake for a street engine, stock or modified.
 

· Registered
Joined
·
308 Posts
Discussion Starter · #8 ·
resting my performer on dry, you can see about 1/16th of the ports. Pro TopLine has there own manifold. but wow, like a racing manifold. long story short, good friend of mine has 1 flo-tek, angle plug, complete head. he ordered straight plug heads, this was packaged wrong, they told him to keep it and sent a new one. he`s giving it to me,,, so,,, i just ordered another. i need the angle plug since this thing has big header tubes. thanx you guys!
 

· Registered
Joined
·
1,007 Posts
If you can only see 1/16" of the port at the bottom of the intake I'd guess even a standard gasket would just about match up the port floor perfectly. Or do you mean you had a gasket sitting there as well? Either way, a thicker gasket will raise the intake a touch and a thinner one will set it down lower.
 

· Registered
Joined
·
1,158 Posts
123 20002 oa 1926 1002 stamped on the front face. valve cover off, ProLine,,, 5 embossed. gotta go to work, i`ll look these up later,,,, thanx.
I can save you the trouble of looking it up, I've got the Pro Toplines catalog from 2002....

" 123 2000 20A " is listed as Pro Aluminum Lightning, 220cc intake runner volume, 72cc combustion chamber volume, 2.02"/1.6" valves as delivered but can go to as big as 2.10" intake valve.
They have a .100" raised roof intake port (that's how most all aftermarket heads get their bigger volume runners, raise the port roof).
That's why a standard Performer intake isn't going to fit.

220 cc intake runner is a pretty big head, recommended for 383-400+ cubic inch running 7500 rpm peak.

Sounds like maybe your trying to turn a race horse into a stable pony??!!
 

· Registered
Joined
·
1,158 Posts
I forgot to add, Pro Toplines recommended intake manifold for this head is the Edelbrock #2925....which is the Super Victor. It was never meant to fit a stock port size Performer intake.
It also lists the as-cast flow numbers if you need them, just ask. Pretty solid numbers, its a good flowing head.
 
1 - 14 of 14 Posts
Top