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My High Elavation 416 Build

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Old Apr 13, 2017 | 08:42 PM
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1973 STEP A SIDE's Avatar
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Default My High Elavation 416 Build
I started a post earlier and never went anywhere .
So here I go again . We are about ready to assemble the short block and then move on to the top half .

Build so far .

Short Block .

New LS3 block
Texas Speed 4340 Crank
Texas Speed H Beam Rods w/arp 2000 bolts
Wiseco 4.070 piston -3cc
ARP main studs
ARP head studs
Sac City billet barbell
Holley # 302-3 oil pan
Melling #10296 High Volume High Pressure
Roll Master Billet gears and IWIS Pro chain

Long Block

Cam 236 248 @50 620 603 113+3
Morel # 6504 Lifters
TEA TFS 255 heads
Crowler Shaft mount roller rockers .
Smith Bros Push rods
Fast 102
VMAX Velocity ring
VMAX Ported LS3 T.B.
GM 42# injectors

Compression ratio 12.26

Hopefully it makes power !!
Last edited by 1973 STEP A SIDE; Jan 1, 2018 at 09:52 AM.
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Old Apr 13, 2017 | 10:12 PM
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Looks good! In for results.
What Compression? Able to share
Cam Specs?
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Old Apr 13, 2017 | 10:15 PM
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What are you doing with it and what are the numbers of that Cam Martin spec-ed for you? Those 42lb injectors might be a concern if you were looking for 550 or more rwhp. "416 build" catches my eye every time.
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Old Apr 13, 2017 | 11:07 PM
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Originally Posted by NAVYBLUE210
Looks good! In for results.
What Compression? Able to share
Cam Specs?
Compression will be 12.4
Cam 236 248 @50 620 603 113+3
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Old Apr 13, 2017 | 11:09 PM
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Originally Posted by 64post
What are you doing with it and what are the numbers of that Cam Martin spec-ed for you? Those 42lb injectors might be a concern if you were looking for 550 or more rwhp. "416 build" catches my eye every time.
Toy , Auto X and a track day . See above cam specs
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Old Apr 14, 2017 | 07:12 AM
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Nice. Martin just spec'd out one for my 416 about the same. I will be at 11.8 comp ratio.

236/248 620/.603 115+4
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Old Apr 14, 2017 | 06:06 PM
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Originally Posted by dan96z71
Nice. Martin just spec'd out one for my 416 about the same. I will be at 11.8 comp ratio.

236/248 620/.603 115+4
Dan How far along are you with your build ?
I sure hope they are runners . What intake and heads are you using ?
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Old Apr 14, 2017 | 06:18 PM
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Looks like a nice combo. Should make good power.
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Old Apr 15, 2017 | 01:18 AM
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Did your ls3 block, require any clearancing to install the 4 inch crank?
Originally Posted by 1973 STEP A SIDE
I started a post earlier and never went anywhere .
So here I go again . We are about ready to assemble the short block and then move on to the top half .

Build so far .
Short Block .

New LS3 block
Texas Speed 4340 Crank
Texas Speed H Beam Rods w/arp 2000 bolts
Wiseco 4.070 piston -3cc
ARP main studs
ARP head studs
Sac City billet barbell
Speedtech oilpan w/ remote filter
Melling High Volume Pump
Roll Master Billet gears and IWIS Pro chain

Long Block
Martin Smallwood spec cam
Morel Lifters
TEA TFS 255 heads
LS3 rockers w/ Straub kit w/ bolts
Push rods ??
Fast 102
VMAX Velocity ring
VMAX Ported LS3 T.B.
GM 42# injectors

Hopefully it makes power !!
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Old Apr 15, 2017 | 09:22 AM
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Originally Posted by heykw
Did your ls3 block, require any clearancing to install the 4 inch crank?
Yes ! Just a small amount at the bottom of the cylinder wall !
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Old Apr 15, 2017 | 03:59 PM
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You'll probably have to space your windage tray a bit too. Not sure why notching the bottom edge of the bores is necessary for some but not others, it must be the rods in use. I did not have to with a 4.00 stroke and I beam rods on a 5.7 block.
Last edited by 64post; Apr 15, 2017 at 10:27 PM.
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Old Apr 15, 2017 | 06:16 PM
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Name: IMG_2989_zpspwioh0ff.jpg Views: 205 Size: 131.7 KB

My son wanted to see what the top end was going to look like .
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Old Apr 15, 2017 | 07:00 PM
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Looks nice! I like the black valve covers and manifold, plus the clean fuel rails.
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Old Apr 15, 2017 | 10:06 PM
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Really interested in the results
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Old Apr 16, 2017 | 09:25 AM
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Originally Posted by G Atsma
Looks nice! I like the black valve covers and manifold, plus the clean fuel rails.
Yes it does look good . I think we will change the crossover line to black .
My son also wants MSD coils , I don't know if ther worth the money .
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Old Apr 16, 2017 | 09:29 AM
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I'm estimating 640 horse at the crank.
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Old Apr 16, 2017 | 09:32 AM
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Originally Posted by Tuskyz28
Really interested in the results
That makes at least 3 of use ! My son is hoping for 650 FWHP . I just hope that for about 525 RWHP . Also hoping that it has I good torque curve . Time will tell .
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Old Apr 16, 2017 | 09:45 AM
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1973,
I'd be surprised to see that high IMHO.
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Old Apr 16, 2017 | 10:03 AM
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At 12.4:1, what kind of fuel will it be tuned for? A/T?
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Old Apr 16, 2017 | 02:38 PM
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Originally Posted by 1973 STEP A SIDE
My son also wants MSD coils , I don't know if they're worth the money .
I've read here on these forums that there is little to gain with aftermarket coils, but do a search here to find out the latest. The GM coils do a good job.
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