Head Machining
09-23-2004, 04:50 AM
#3
Registered User
Join Date: Aug 2002
Location: Red Oak Texas
Posts: 1,509
Re: Head Machining
the stock LT1 valves are 1.94/1.50 and anything other than this will require machining. The stock seats can be machined to accept a 2.00/1.56 valve and anything larger needs larger seats installed.
Some people run 2.02/1.60 valves with no problem but they are just machining the seats as large as possible (perfect for the 2.00/1.56 valves) and installing the 2.02/1.60 valves instead. There is no advantage of using the 2.02/1.60 valves over the 2.00/1.56 valves since the seat is not any larger.
NightTrain66@msn.com
Some people run 2.02/1.60 valves with no problem but they are just machining the seats as large as possible (perfect for the 2.00/1.56 valves) and installing the 2.02/1.60 valves instead. There is no advantage of using the 2.02/1.60 valves over the 2.00/1.56 valves since the seat is not any larger.
NightTrain66@msn.com
09-23-2004, 06:46 AM
#4
Registered User
Join Date: Jul 2003
Location: pa
Posts: 1,991
Re: Head Machining
you can run 2.00 and 1.60 with just having a simple regrind done but to run the 2.02 or larger you will need new intake seats which aint that much $9 a piece to install and like $5 for each seat
Thread
Thread Starter
Forum
Replies
Last Post
F(ast)-body
LT1 Based Engine Tech
8
02-26-2003 09:05 AM