Pennock's Fiero Forum
  Technical Discussion & Questions
  V6 2.8 valves - performance tip

Post New Topic  Post A Reply
Email This Page to Someone! | Printable Version


next newest topic | next oldest topic
V6 2.8 valves - performance tip by lou_dias
Started on: 05-15-2014 05:50 PM
Replies: 1 (206 views)
Last post by: woodyhere on 05-15-2014 06:51 PM
lou_dias
Member
Posts: 5090
From: Warwick, RI
Registered: Jun 2000


Feedback score: (3)
Leave feedback





Total ratings: 65
Rate this member

Report this Post05-15-2014 05:50 PM Click Here to See the Profile for lou_diasClick Here to Email lou_diasSend a Private Message to lou_diasEdit/Delete MessageReply w/QuoteDirect Link to This Post
From 1987 to 1989, there was an aluminum head 2.8 engine that used valves very similar to iron head 2.8 engines.
They are technically shorter, .020" but that won't make much of a difference to require new springs and pushrods...
The big advantage is that they have 8mm diameter valve stems. Stock Fiero 2.8 valve stem diameter is 11/32".
I am building a set of heads now for when my 2.8 finally dies and my machinist was able to find these with the following part #'s:
201057 is the intake valve and 201058 is the exhaust valve. I don't know what supplier he has though...
For guides, he was able to look up the iron head 2.8 specs and get the correct guides. He said at worst, he's have to shorten the guides to fit.

Next time you are rebuilding or refreshing heads, I recommend this route with valves. As an added benefit, they are super cheap. ~$8 a valve.
IP: Logged
PFF
System Bot
woodyhere
Member
Posts: 399
From: prior lake, MN USA
Registered: Aug 2011


Feedback score: N/A
Leave feedback

Rate this member

Report this Post05-15-2014 06:51 PM Click Here to See the Profile for woodyhereClick Here to Email woodyhereSend a Private Message to woodyhereEdit/Delete MessageReply w/QuoteDirect Link to This Post
That's a good bit of usefull info. You might ask your machinist to back cut the valves while he is at it, if he hasn't already said he was going to do that. It enhances low lift flow and would compliment the narrow valve stems. It' not expensive to do.

------------------
woodys 427

IP: Logged

next newest topic | next oldest topic

All times are ET (US)

Post New Topic  Post A Reply
Hop to:

Contact Us | Back To Main Page

Advertizing on PFF | Fiero Parts Vendors
PFF Merchandise | Fiero Gallery | Ogre's Cave
Real-Time Chat | Fiero Related Auctions on eBay



Copyright (c) 1999, C. Pennock