PDA

View Full Version : 427 Valvetrain parts

tpepmeie
12-03-2010, 02:20 PM
What does nearly $8k buy these days... I hope it performs as good as it looks. :pray

not shown are the new buckets, valve locks, and shims to set the spring heights.

http://i1036.photobucket.com/albums/a441/tpepmeie/IMG_2671.jpg

http://i1036.photobucket.com/albums/a441/tpepmeie/IMG_2678.jpg

http://i1036.photobucket.com/albums/a441/tpepmeie/IMG_2475.jpg

http://i1036.photobucket.com/albums/a441/tpepmeie/IMG_2477.jpg
A26B
12-03-2010, 03:55 PM
Dang that's pretty!

Are the spring seats any different than stock?
rhipsher
12-03-2010, 05:04 PM
You've got that right jerry. Im gonna make that first pic my screen saver at work. What rwhp range can you expect with a 427ci LT5?
tpepmeie
12-03-2010, 05:58 PM
Are the spring seats any different than stock?

dimensions are a little different to match the new springs.
Kevin
12-03-2010, 06:16 PM
what size are those valves? i'm lovin this
USAFPILOT
12-03-2010, 08:18 PM
Who builds 427's? As in who not as in why build a 427. I would love a 427, much more than a 415.
Polo-1
12-03-2010, 08:54 PM
PURE LT5 PORN

I like it:-D

http://www.aesracing.net/lt5.htm
tpepmeie
12-04-2010, 08:26 AM
what size are those valves? i'm lovin this

Not as big as you might think... only 39.5mm. plenty of room in the chamber to go bigger, up to 42mm. You have to be careful of valve clash between the intake & exhaust if you have significant lift around TDC. Next time, I'll go bigger....
XfireZ51
12-04-2010, 09:07 AM
Todd,

You've clearly spent a great deal of time, planning and money on this project. What's your expectations? How will you be judging whether you've succeeded and that money was well spent?
tpepmeie
12-04-2010, 09:33 AM
Todd,

You've clearly spent a great deal of time, planning and money on this project. What's your expectations? How will you be judging whether you've succeeded and that money was well spent?

Dom,
great question. What does success look like...
1) I actually get it assembled in time for the dyno test in January...
2) starts up with no drama...
3) good compression, ring seal, etc.
4) at least 700 chp on the engine dyno
5) no infant mortality, the thing survives the dyno test without wiping a cam lobe or breaking something.
6) no smoke, minimal oil consumption

We'll see. Recent experiences by some of the other members have made me a little quesy about turning the key first time. After all, this is the first time I've assembled an LT5...

Todd
Polo-1
12-04-2010, 09:47 AM
use molly paste not assembly oil. These thing take for ever to fill up with oil...
HIZNHRZ
12-04-2010, 10:36 AM
Dom,
great question. What does success look like...

5) no infant mortality, the thing survives the dyno test without wiping a cam lobe or breaking something.
6) no smoke, minimal oil consumption

Will the run time spent on the engine dyno be a few minutes to few hours?
tomtom72
12-04-2010, 02:23 PM
I think I agree with Kevin.......pure LT5 porn!:mrgreen:

Todd, best wishes and all the luck in the world to you Brother!:saluting:

God I'd love to be a fly on the wall when you light that monster off! I'll bet your grin will be big enough to swallow your ears....could you just see it, 4 CAM/427 on the license plate! Boy oh boy would that confuse some ZO6 owners or what?:sign10:
USAFPILOT
12-04-2010, 04:13 PM
I think I agree with Kevin.......pure LT5 porn!:mrgreen:

Todd, best wishes and all the luck in the world to you Brother!:saluting:

God I'd love to be a fly on the wall when you light that monster off! I'll bet your grin will be big enough to swallow your ears....could you just see it, 4 CAM/427 on the license plate! Boy oh boy would that confuse some ZO6 owners or what?:sign10:

Exactly what I was thinking? Want to build me one once yours is finished?
Kevin
12-04-2010, 04:31 PM
what are we talking on the cams lift/duration wise
Pete
12-04-2010, 08:23 PM
I got wood.:redface:

Todd, good work brotha.:icon_thum


I can't wait to hear the cam set up.


C U @ BG? :-D


Pete
Hog
01-21-2011, 11:44 AM
Dom,
great question. What does success look like...
1) I actually get it assembled in time for the dyno test in January...
2) starts up with no drama...
3) good compression, ring seal, etc.
4) at least 700 chp on the engine dyno
5) no infant mortality, the thing survives the dyno test without wiping a cam lobe or breaking something.
6) no smoke, minimal oil consumption

We'll see. Recent experiences by some of the other members have made me a little quesy about turning the key first time. After all, this is the first time I've assembled an LT5...

Todd
I guess you were successful, congratulations on the 700+hp.

peace
Hog