Go Back   ChevyXtreme Classic Chevrolet Enthusiast Forum & Web Link Directory > Chevrolet Tech Board {CLICK HERE TO SEE ALL GROUPS WITH CURRENT THREADS} > Engine & Drivetrain

Reply
 
Thread Tools Display Modes
Old 09-04-2010, 11:39 AM   #11
OLD 9
Respected Member
Posting Expert
 
OLD 9's Avatar
 
Join Date: Jun 2010
Posts: 1,110
My Mood:
OLD 9 is on a distinguished road
Re: sbc 400

THIS MIGHT HELP TOO

Steam holes are recommended for all 400 block applications. Use a 400
gasket as a template and drill the three holes nearest the spark plug side of the head straight down, the other three which are very near the head bolt holes should be drilled at a 30 degree angle away from the bolt hole. The center hole will intersect water about 1" down and the two outboard holes to a depth of 2 1/4". Use a 1/8 drill.
OLD 9 is offline   Reply With Quote
Old 07-02-2011, 09:21 PM   #12
ROYO
Respected Member
Posting Expert
 
ROYO's Avatar
 
Join Date: Jul 2008
Posts: 2,786
My Mood:
ROYO is on a distinguished road
4 hundred sbc

This motor had gm bearing in it. plus 003s I couldn't believe it
Attached Images
File Type: jpg Picture 867.jpg (135.3 KB, 55 views)
File Type: jpg Picture 868.jpg (57.8 KB, 54 views)
File Type: jpg Picture 869.jpg (89.0 KB, 55 views)
File Type: jpg Picture 870.jpg (58.4 KB, 54 views)
File Type: jpg Picture 871.jpg (167.1 KB, 55 views)
File Type: jpg Picture 872.jpg (115.9 KB, 55 views)
__________________

Support The Board Here
ROYO is offline   Reply With Quote
Old 07-02-2011, 09:24 PM   #13
ROYO
Respected Member
Posting Expert
 
ROYO's Avatar
 
Join Date: Jul 2008
Posts: 2,786
My Mood:
ROYO is on a distinguished road
Re: 4 hundred sbc

some more
Attached Images
File Type: jpg Picture 873.jpg (127.1 KB, 58 views)
File Type: jpg Picture 875.jpg (66.6 KB, 56 views)
File Type: jpg Picture 876.jpg (87.1 KB, 57 views)
File Type: jpg Picture 877.jpg (90.2 KB, 55 views)
File Type: jpg Picture 878.jpg (105.4 KB, 54 views)
File Type: jpg Picture 879.jpg (153.1 KB, 54 views)
File Type: jpg Picture 880.jpg (182.0 KB, 55 views)
__________________

Support The Board Here
ROYO is offline   Reply With Quote
Old 07-03-2011, 06:40 AM   #14
ROYO
Respected Member
Posting Expert
 
ROYO's Avatar
 
Join Date: Jul 2008
Posts: 2,786
My Mood:
ROYO is on a distinguished road
Re: sbc 400

Wow its just took me a little over a year to decide what to do with this motor . There must be something wrong lol
__________________

Support The Board Here
ROYO is offline   Reply With Quote
Old 07-23-2011, 04:12 PM   #15
ROYO
Respected Member
Posting Expert
 
ROYO's Avatar
 
Join Date: Jul 2008
Posts: 2,786
My Mood:
ROYO is on a distinguished road
Re: sbc 400

Is there any benefit in using 350 rods in this motor. The reason I ask is that the pistons are the same price
__________________

Support The Board Here
ROYO is offline   Reply With Quote
Old 07-24-2011, 01:20 AM   #16
ROYO
Respected Member
Posting Expert
 
ROYO's Avatar
 
Join Date: Jul 2008
Posts: 2,786
My Mood:
ROYO is on a distinguished road
Re: sbc 400

To the top
__________________

Support The Board Here
ROYO is offline   Reply With Quote
Old 07-26-2011, 12:11 AM   #17
OLD 9
Respected Member
Posting Expert
 
OLD 9's Avatar
 
Join Date: Jun 2010
Posts: 1,110
My Mood:
OLD 9 is on a distinguished road
Re: sbc 400

All small blocks including 350's used a 5'7" rod compaired to the 5.565" of the 400. The shorter rod is because of the longer stroke. Here is something I found compairing 6", 5.7" and 5.565" rods. Its a good read and answers your question.

http://www.rustpuppy.org/rodstudy.htm

PS Don't forget to match the pistons to the rod length, the wrist pins are in a different place.(higher or lower)

Last edited by OLD 9; 07-26-2011 at 12:40 AM.
OLD 9 is offline   Reply With Quote
Old 07-29-2011, 06:53 PM   #18
ROYO
Respected Member
Posting Expert
 
ROYO's Avatar
 
Join Date: Jul 2008
Posts: 2,786
My Mood:
ROYO is on a distinguished road
Re: sbc 400

Thanks bud there is alot of good reading there
__________________

Support The Board Here
ROYO is offline   Reply With Quote
Old 09-05-2011, 12:05 PM   #19
ROYO
Respected Member
Posting Expert
 
ROYO's Avatar
 
Join Date: Jul 2008
Posts: 2,786
My Mood:
ROYO is on a distinguished road
Re: sbc 400

I got me some 30 over pistons for it from ebay
__________________

Support The Board Here
ROYO is offline   Reply With Quote
Old 09-05-2011, 05:02 PM   #20
ROYO
Respected Member
Posting Expert
 
ROYO's Avatar
 
Join Date: Jul 2008
Posts: 2,786
My Mood:
ROYO is on a distinguished road
Re: sbc 400

H615CP30 part number








This item is a brand new set of (8) Federal Mogul H615CP30 small block Chevy 400 Hypereutectic pistons.
Coated skirts
If you're looking for pistons with an unbeatable combination of performance and value, then Speed-Pro hypereutectic pistons are for you. Speed Pro pistons contains 16 percent silicon for greater strength and wear resistance. They're ideal for use in high performance street, bracket racing, and oval track racing and will work perfectly with normal ring end gaps.

.30 over Small block Chevy 400 pistons
Also available in .40 and .60 over bore sizes

This piston set comes complete with 8 matching pistons and pins.

Part#
Bore Size
Stroke
Compression Height
Weight
Dome Volume
Ring Size
Compression Ratio
64cc 76cc
Rod Fit
Rod length
H615CP30
4.155"
3.75"
(stock)
1.425"
579 Grams
.135 Dish top
4-valve reliefs
5/64 5/64 3/16

10.14 9.08
Press/ Float
5.7"







9.08cr with 76cc head
__________________

Support The Board Here
ROYO is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Content And Images Copyright © 67-72Chevyboard.com