LS3 427 Shortblocks - $4995!!
Thread Starter
Former Vendor
Joined: Feb 2007
Posts: 17,337
Likes: 39
From: Birmingham, AL www.hinsonsupercars.com 205-909-9402
LS3 427 Shortblocks - $4995!!
This is the ultimate engine package for big cubes at a low price!
Feel free to contact us with any questions. You can reach us at 205-267-6387 or seth@hinsonsupercars.com
Hinson Motorsports LS3 427ci Shortblock
- GM LS3 Block
- K1 4.125" Crankshaft
- K1 6.125" Rods
- ARP Rod Bolts
- Clevite Rod Bearings
- Diamond Flat Top Pistons
- Total Seal Rings
- ARP Main Studs
- Clevite Main Bearings
Hinson Motorsports LS3 427ci Longblock
- LS3 427ci Shortblock
- Patriot LS2 Double Roller Timing Set
- Hinson Motorsports HM1 Camshaft
- Trickflow 235cc CNC Ported Cylinder Heads
- ARP LS3 Head Bolts
- GM MLS LS7 Head Gaskets
- Yella Terra Ultralite Roller Rocker Arms 1.7 Ratio
- GM LS7 Lifters
- Comp Magnum Pushrods
Feel free to contact us with any questions. You can reach us at 205-267-6387 or seth@hinsonsupercars.com
Hinson Motorsports LS3 427ci Shortblock
- GM LS3 Block
- K1 4.125" Crankshaft
- K1 6.125" Rods
- ARP Rod Bolts
- Clevite Rod Bearings
- Diamond Flat Top Pistons
- Total Seal Rings
- ARP Main Studs
- Clevite Main Bearings
Hinson Motorsports LS3 427ci Longblock
- LS3 427ci Shortblock
- Patriot LS2 Double Roller Timing Set
- Hinson Motorsports HM1 Camshaft
- Trickflow 235cc CNC Ported Cylinder Heads
- ARP LS3 Head Bolts
- GM MLS LS7 Head Gaskets
- Yella Terra Ultralite Roller Rocker Arms 1.7 Ratio
- GM LS7 Lifters
- Comp Magnum Pushrods
Drifting
Joined: Oct 2006
Posts: 1,569
Likes: 4
From: Phoenix AZ
St. Jude Donor '09-'10-'11
LS3 Questions
What is the bore size on the 700 longblock and why the use of cathedral heads on a built LS3? I want a forged LS3, but these questions beg to be asked. TIA for your input. 
Thread Starter
Former Vendor
Joined: Feb 2007
Posts: 17,337
Likes: 39
From: Birmingham, AL www.hinsonsupercars.com 205-909-9402
The 4.125" Crankshaft will work great for low boost applications. For high boost applications, we recommend the 4.000" Crankshaft.
4.065". We choose the Trickflow 235's because they make big power. We can build the Longblock to any configuration requested.
The LS3 Block is $1,142 cheaper than the LS7 Block. The longer stroke makes more torque. The forged internals will handle a higher power capacity.
Thanks
Seth
Thanks
Seth
Melting Slicks
Joined: Nov 2005
Posts: 2,345
Likes: 2
From: Houston 06 C6 Ysi SC 402 fgd TX
I have seen the LS3 418s and the cyl bores have space between them like your pictures have for the 427. How do you make the LS3427 not have siamese cyls? is it the stroke distance is longer than the stock LS7?
Thanks
Thanks
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Thread Starter
Former Vendor
Joined: Feb 2007
Posts: 17,337
Likes: 39
From: Birmingham, AL www.hinsonsupercars.com 205-909-9402
Seth
Le Mans Master
Joined: May 2003
Posts: 5,362
Likes: 3
From: Delray Beach FL
Great Deal!!! Wish you had this offer last March.
I have an LS3 418 built by another engine builder and love the power and torque the stroker puts out! With factory intake and heads, Z51 rear end and an A6 trans with a 3600 stall converter on DRs, my best time has been 10.903 @ 126.83mph. If you want to get some serious power going, Stroke It!!
Good luck with the sale!!
I have an LS3 418 built by another engine builder and love the power and torque the stroker puts out! With factory intake and heads, Z51 rear end and an A6 trans with a 3600 stall converter on DRs, my best time has been 10.903 @ 126.83mph. If you want to get some serious power going, Stroke It!!
Good luck with the sale!!
Le Mans Master
Joined: May 2003
Posts: 5,362
Likes: 3
From: Delray Beach FL
Well, mine is paid for...but due to the loss of my parents. There were 63 and 62...way too young. If you get a chance....do whatever work on your Vette as you can now...you only live once!
Team Owner
Joined: Apr 2001
Posts: 26,795
Likes: 614
From: Elmhurst, IL (West Suburb of Chicago) & Home of MEGA Horsepower
St. Jude Donor '06
Thread Starter
Former Vendor
Joined: Feb 2007
Posts: 17,337
Likes: 39
From: Birmingham, AL www.hinsonsupercars.com 205-909-9402
Great Deal!!! Wish you had this offer last March.
I have an LS3 418 built by another engine builder and love the power and torque the stroker puts out! With factory intake and heads, Z51 rear end and an A6 trans with a 3600 stall converter on DRs, my best time has been 10.903 @ 126.83mph. If you want to get some serious power going, Stroke It!!
Good luck with the sale!!
I have an LS3 418 built by another engine builder and love the power and torque the stroker puts out! With factory intake and heads, Z51 rear end and an A6 trans with a 3600 stall converter on DRs, my best time has been 10.903 @ 126.83mph. If you want to get some serious power going, Stroke It!!
Good luck with the sale!!
http://forums.corvetteforum.com/c6-t...s3-427-na.html
603 rwhp 583 rwtq
Seth
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
just don't understand why reversing bore and stroke changes the CI total.
Racer
Joined: Nov 2006
Posts: 294
Likes: 0
From: Vancouver WA
I would think this configuration (4.065"x4.125") would be yeilding about 440 CI. The stock 427 (LS7 or BBC) config. is 4.125" bore by 4.00" stroke. I'm not saying there's anything wrong with extra inches, just don't understand why reversing bore and stroke changes the CI total.
just don't understand why reversing bore and stroke changes the CI total.4.065 / 2 = 2.0325 2.0325 squared = 4.131056
4.131056 X 3.1415926 = 53.53464
53.53464 X 8 = 428.27
So if anything, they could call it a 428
Le Mans Master
Joined: Jul 2005
Posts: 5,328
Likes: 405
I would think this configuration (4.065"x4.125") would be yeilding about 440 CI. The stock 427 (LS7 or BBC) config. is 4.125" bore by 4.00" stroke. I'm not saying there's anything wrong with extra inches, just don't understand why reversing bore and stroke changes the CI total.
just don't understand why reversing bore and stroke changes the CI total.For a 4.065" bore/4.125" stroke, that yields 428.28 in³ which rounds to 428 in³.
For the LS7 4.125" bore/4" stroke, that yields 427.65 in³ which also rounds to 428 in³.
As you can see, neither one is "technically" 427 in³ but they are both the same size. The bottom line is the company making the engine can call it whatever they want as long as they deliver more than advertised.
An interesting thing about the displacement formula for piston bores close to 4" is whatever you change the piston bore by requires twice that amount of change on the stroke in the opposite direction to maintain equal displacement. As you can see above, a reduction of .060" on the bore was offset by an increase of .125" on the stroke and displacement was within .63 in³ of each other. If the bore had been reduced .0625" (half of .125"), the displacements would have been within .1 in³ of each other.
Last edited by glass slipper; Jun 16, 2010 at 04:24 PM.