Home
What's new
Latest activity
Authors
Store
Latest reviews
Search products
Forums
New posts
Search forums
What's new
New posts
New listings
New products
New profile posts
Latest activity
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
Cart
Cart
Loading…
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Search titles only
By:
Menu
Log in
Register
Navigation
Install the app
Install
More options
Change style
Contact us
Close Menu
Forums
Mustang Forums
SN-95 and New Edge Mustangs
Need help! 2v vs 01 cobra 4 valve
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Sluggie24" data-source="post: 15580105" data-attributes="member: 184003"><p>Most all aftermarket heads don't have the valve seats machined perfectly concentric with the valve guides. There can be a good amount of runout which causes sealing problems which costs power. The seats need to be measured and machined if needed so they aren't more than a few thousands out. </p><p></p><p>The reason bare heads and assembled aftermarket heads are only about $200 difference in price is because cheap low quality valves and hardware are used to keep it inexpensive. Quality valves alone can cost more than $200 alone, not counting springs, retainers, keepers and seals.</p></blockquote><p></p>
[QUOTE="Sluggie24, post: 15580105, member: 184003"] Most all aftermarket heads don't have the valve seats machined perfectly concentric with the valve guides. There can be a good amount of runout which causes sealing problems which costs power. The seats need to be measured and machined if needed so they aren't more than a few thousands out. The reason bare heads and assembled aftermarket heads are only about $200 difference in price is because cheap low quality valves and hardware are used to keep it inexpensive. Quality valves alone can cost more than $200 alone, not counting springs, retainers, keepers and seals. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Mustang Forums
SN-95 and New Edge Mustangs
Need help! 2v vs 01 cobra 4 valve
Top