Porting L98 Heads - Advise Please
Thread Starter
Team Owner
Joined: Sep 2002
Posts: 22,209
Likes: 12
From: OBAMA IS HITLER
Porting L98 Heads - Advise Please
The CNC'd Lingenfelter heads were sold to another party, so my luck ran out.
So now I'm looking at getting my '90 heads ported. I'm going to have an LPE 219 cam & ported Superram base/Large tube runners/ported plenum & 52mm TB setup ith this. So to maximize, the heads are going to have to be pulled and properly ported.
What do I look for in finding the right shop to do this correctly? Granted, a CNC job isn't necessary (and I would assume way expensive anyway), but I assume a full port job is in order? What exactly does this entail, and abouyt how much should this cost?
:cheers:
So now I'm looking at getting my '90 heads ported. I'm going to have an LPE 219 cam & ported Superram base/Large tube runners/ported plenum & 52mm TB setup ith this. So to maximize, the heads are going to have to be pulled and properly ported.
What do I look for in finding the right shop to do this correctly? Granted, a CNC job isn't necessary (and I would assume way expensive anyway), but I assume a full port job is in order? What exactly does this entail, and abouyt how much should this cost?
:cheers:
Le Mans Master
Joined: Jun 2002
Posts: 6,097
Likes: 0
From: High Plains Drifter Fayetteville, AR
Re: Porting L98 Heads - Advise Please (bradvette)
The CNC'd Lingenfelter heads were sold to another party, so my luck ran out.
So now I'm looking at getting my '90 heads ported. I'm going to have an LPE 219 cam & ported Superram base/Large tube runners/ported plenum & 52mm TB setup ith this. So to maximize, the heads are going to have to be pulled and properly ported.
What do I look for in finding the right shop to do this correctly? Granted, a CNC job isn't necessary (and I would assume way expensive anyway), but I assume a full port job is in order? What exactly does this entail, and abouyt how much should this cost?
:cheers:
So now I'm looking at getting my '90 heads ported. I'm going to have an LPE 219 cam & ported Superram base/Large tube runners/ported plenum & 52mm TB setup ith this. So to maximize, the heads are going to have to be pulled and properly ported.
What do I look for in finding the right shop to do this correctly? Granted, a CNC job isn't necessary (and I would assume way expensive anyway), but I assume a full port job is in order? What exactly does this entail, and abouyt how much should this cost?
:cheers:
Depending on the shop and the quality of their work, I'd say you're looking at about $800 - $1000. For a full-on race port, we charge 12-1500 where I work. But that's on big block heads that need to flow at the maximum.
Also, make sure you get them flowed before and after, to see what kind of gains the porter made. A bad port job can flow WORSE than an untouched head. And don't pay any attention to flow #'s above .500 for an L98 head. You're looking for increased flow down low to mid range where a street engine lives.
Drifting
Joined: Feb 2003
Posts: 1,978
Likes: 2
From: San Antonio Texas
Re: Porting L98 Heads - Advise Please (bradvette)
I think that when you check around for prices for porting your heads, or buying new ones, you'll find that unless you port your own, buying new and selling your old ones would be about as cost-effective. Plus you'll have much better flowing heads. JMHO.
:chevy
:chevy
Race Director
Joined: Feb 2004
Posts: 12,518
Likes: 19
Re: Porting L98 Heads - Advise Please (Curveit)
I made the mistake of working up a set of L-98 heads. I have more money wrapped up than I care to admit. Car runs very well but I could have bought a set of heads that made more power and cost less. Just my $.02 :nono:
Drifting
Joined: May 2002
Posts: 1,581
Likes: 2
From: The Motor City
Re: Porting L98 Heads - Advise Please (Pete K)
I made the mistake of working up a set of L-98 heads. I have more money wrapped up than I care to admit. Car runs very well but I could have bought a set of heads that made more power and cost less. Just my $.02 :nono:
Racer
Joined: Nov 2002
Posts: 471
Likes: 0
From: Queens NY
Re: Porting L98 Heads - Advise Please
I dont know if it helps or not but I just picked up a set of IRON L98 624 castings
they have about $1200 into em and flow about 230 cfm w/ 2.02 valves, screw in studs, etc..
they have about $1200 into em and flow about 230 cfm w/ 2.02 valves, screw in studs, etc..
Drifting
Joined: Feb 2003
Posts: 1,978
Likes: 2
From: San Antonio Texas
Re: Porting L98 Heads - Advise Please (bradvette)
I would suggest AFR or Brodix heads. Port CC (180-190-210) depending on your engine size, expected RPM, cam, etc. Contact manufacturer for proper size, and price.
P.S. ...stock iron Vortec heads flow around 230 CFM and cost about $450.00 new, so I wouldn't be too hot on those $1200.00 units.
:chevy
P.S. ...stock iron Vortec heads flow around 230 CFM and cost about $450.00 new, so I wouldn't be too hot on those $1200.00 units.
:chevy
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