Pfeiffer's Machine Shop; Freeport, Il
11-06-2010, 10:37 AM
#1
Drifting
Thread Starter
Pfeiffer's Machine Shop; Freeport, Il
A few years ago I bought an LT-5 engine(32V motor from a 90-95 ZR-1)......I got it cheap because the prior owner ported the heads and could not get it to run after porting the heads.
Although the porting was decent, they had ported too far to one side and cut the gasket surface so thin that the gasket was letting in false air. The guy had cross threaded and broken off a bolt in the heads....dame near sideways in there. I took the heads to Pfeiffers in Freeport, Il. For $800 they cut out the brokenbolt, welded and reshaped the tab.....welded and reshaped the head ports....blasted the ports to smooth them out, and also did a complete valve job.
Pfeiffer's Engine Builders
1798 Smokey Hollow Road
Freeport, IL 61032-9667
Phone: (815) 233-2267
Before:
After:
Although the porting was decent, they had ported too far to one side and cut the gasket surface so thin that the gasket was letting in false air. The guy had cross threaded and broken off a bolt in the heads....dame near sideways in there. I took the heads to Pfeiffers in Freeport, Il. For $800 they cut out the brokenbolt, welded and reshaped the tab.....welded and reshaped the head ports....blasted the ports to smooth them out, and also did a complete valve job.
Pfeiffer's Engine Builders
1798 Smokey Hollow Road
Freeport, IL 61032-9667
Phone: (815) 233-2267
Before:
After:
Last edited by lgaff; 11-06-2010 at 10:49 AM.
11-06-2010, 11:51 AM
#3
Drifting
Thread Starter
Small two man shop.....owner is Steve Pfeiffer knows his stuff....and takes his time to explain and show everything to you....Work areas are spotless...very clean shop.
