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Choosing Your New Srt-8 Stroker Engine: Explanation & Basic Build Sheets
#1
Posted 01 June 2011 - 11:18 AM
If you are researching and planning on purchasing a stroker, here are 6 of the best engines to choose from:
392 Stroker Short Blocks:
HHP/BES Street Series 392 SRT-8 HEMI Stroker Short Block HHP392SBTS Starting at $4345.00
HHP/BES Sport Series 392 SRT-8 HEMI Stroker Short Block HHP392SBSS Starting at $4295.00
HHP/BES Professional Series 392ci SRT-8 HEMI Stroker Short Block Engine HHP392SBPS Starting at $5195.00
426 Stroker Short Blocks:
HHP/BES Street Series 426 SRT-8 HEMI Stroker Short Block HHP426SBTS Starting at $4395.00
HHP/BES Sport Series 426 SRT-8 HEMI Stroker Short Block HHP426SBSS Starting at $4295.00
HHP/BES Professional Series 426 SRT-8 HEMI Stroker Short Block HHP426SBPS Starting at $5295.00
With our strokers, the main difference in pricing is due to the rotator used during assembly which consists of the crank, rods and pistons. All engines have piston options in order to reach desired compression. The craftsmanship that goes into each engine from BES is the exact same so no matter what. Both BES and HHP stand behind our strokers because we know that you are getting an engine that will have no issues.
Street Series Rotator: K1 (the least expensive by far, decent quality parts)
Sport Series Rotator: Manley (Our most popular, an awesome rotator for the price)
Professional Series Rotator: Callies (Very high end, superb finishing, choice of most racers)
If you have any questions as to what motor best suits your needs or your desired build, just give us a call. A few of the additional parts you can typically expect to purchase with your engine build, other than) your basics of exhaust, cold air intake, Diablo Predator and 180 degree thermostat (for Naturally Aspirated), are:
Cylinder Heads: HHP/BES Ported & Polished Race-Grade Cylinder Heads (& Optional Manifold): All 6.1L SRT-8 HHP-61PPHI
Camshafts:
Pushrods: Manley Perfomance SRT-8 HEMI 5/16" Pushrod Set 26610
Head Bolts/Gaskets: HEMI Head Bolts & Head Gasket Set BLTS-GSKT
Crank Damper: ATI Super Damper Harmonic Damper for 5.7L & 6.1L HEMI Engines 91843X
Fuel Injectors:
*Some SRT-8 vehicles may require transmission or rear end upgrades as well.
And last but not least install and tuning. HHP can do the install for you at any of our install shops (DE, SC or KS) or set you up with one of our outside authorized installers in your area. We also can work with you or your local install shop of choice as well. For out-of-house customers, we provide free startup tunes to ensure everything was properly installed and ensure that you do not damage your motor if you delay your custom tuning while you break your new engine in. We also provide email tuning packages in order to allow you to get the most out of your stroked SRT-8.
For help planning your build, whether you intend to do a full stroker build all at once or plan on piecing it together over time, give us a call at 888-894-1115 and we can help you become the next high horsepower LX/LC success story.
[Note: Custom HEMI engines are available. If you do not see the engine combination listed that you are looking for, just let us know.]
Lowcountryspeedshop.com
#2
Posted 01 June 2011 - 11:51 AM
#3
Posted 01 June 2011 - 12:50 PM

2010 6.1 B5 auto Challenger
BFNY Performance
HEMITUNER Performance
Stock 12.94 @ 108
SC'd 11.52 @ 120
To Do List:
SP 3.90 rear, cam and converter
#4
Posted 01 June 2011 - 01:39 PM
-Speedy
Orange Krush
Arrington Powered 2009 R/T 6 Speed Tuned by [email protected]
#5
Posted 01 June 2011 - 01:59 PM
How are you guys for maggie and cam install on a 2010 5.7?
Stevo
11.55 @ 118.77 mph with a 1.61 60' June 14th 2014 London Motorsports Park


530 rwhp 458 trq
"Tooned by Mike @ OST"
#6
Posted 01 June 2011 - 03:00 PM
#7
Posted 01 June 2011 - 04:25 PM
#8
Posted 01 June 2011 - 07:49 PM
#9
Posted 01 June 2011 - 09:22 PM
What's the best combo for a KB @ 14psi ? What CR would you recommend ? Something that's tough enough to possibly handle an additional 200shot of nitrous or a little more boost if need be. I like to overbuild...
Thx
2009 SRT 6Spd KB@8PSI
[email protected]
Tuned by Tim@mph
#10
Posted 03 June 2011 - 10:50 AM
Good info Jeff! Pricing would be nice. Any pix of your shop?
How are you guys for maggie and cam install on a 2010 5.7?
Stevo

We would be happy to do the install for you.
Good info. Would like approximate prices too.
What's the best combo for a KB @ 14psi ? What CR would you recommend ? Something that's tough enough to possibly handle an additional 200shot of nitrous or a little more boost if need be. I like to overbuild...
Thx
I would recommend a forged 6.1L with 9.5:1 compression or a 426 stroker with the same compression for your application.
Jeff
We would be happy to do the install for you.
I would recommend a forged 6.1L with 9.5:1 compression or a 426 stroker with the same compression for your application.
Jeff
Another pic of the shop:
Lowcountryspeedshop.com
#11
Posted 08 June 2011 - 09:38 PM
Jeff
Thanks for the info Jeff. I'm just catching up on this one.
I have two stupid follow-up questions.
1- Would a 6.1 at 9.5 feel sluggish going around in the street when not in boost compared to the stock 6.1 ? Just thinking about weekend cruising around fun factor.
2- I read that a 426 stroker was not good for boost because of the connecting rod angle. Is there a secret trick like a bigger block altogether or something to help with that ? Would the 426 be significantly more fragile or less durable ?
Thx again
2009 SRT 6Spd KB@8PSI
[email protected]
Tuned by Tim@mph
#12
Guest_HemiRob_*
Posted 08 June 2011 - 10:48 PM
Guest_HemiRob_*
Thx again
[/quote]
its the 440 stroker that your thinking of not the 426 stroker.
#13
Posted 09 June 2011 - 06:20 AM
We would be happy to do the install for you.
I would recommend a forged 6.1L with 9.5:1 compression or a 426 stroker with the same compression for your application.
Jeff
Another pic of the shop:the 426 is to big for the 2.8 KB, and I think 14psi and a 200shot at 9:5 compression might not last as long as a lower compression engine.
Josh set me up at 8.8 compresion knowing that I was going to push it hard.
I would say at 8.8 with 14psi and a 200 shot that extra compression is not gonna make a seat of the pants difference, but the 8.8 will live longer.
What ever you do BES is the shit.
Thanks Josh for my Badass Engine BES Rules!
no the 426 would not be sluggish.I would recommend a forged 6.1L with 9.5:1 compression or a 426 stroker with the same compression for your application.
Jeff
Thanks for the info Jeff. I'm just catching up on this one.
I have two stupid follow-up questions.
1- Would a 6.1 at 9.5 feel sluggish going around in the street when not in boost compared to the stock 6.1 ? Just thinking about weekend cruising around fun factor.
2- I read that a 426 stroker was not good for boost because of the connecting rod angle. Is there a secret trick like a bigger block altogether or something to help with that ? Would the 426 be significantly more fragile or less durable ?
Thx again
If you want to do a 426 then the 2.8 KB is to small, you need a procharger or vortec, the 3.6 KB would do also.
Build the 6.1 with the 2.8.
My car is not sluggish at 8.8 on the street it dangerous

#14
Posted 09 June 2011 - 06:35 AM
Good info Jeff! Pricing would be nice. Any pix of your shop?
How are you guys for maggie and cam install on a 2010 5.7?
Stevo
Stevo, I would let them know what your goals are, and ask them for advice in reaching that goal. Let them help you pick the equipment you need to get there.
You can be banned for anything at anytime.
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#15
Posted 09 June 2011 - 09:17 PM
Yep, with a 426 my 2.8KB would need an upgrade. That's understandable.
2009 SRT 6Spd KB@8PSI
[email protected]
Tuned by Tim@mph
#16
Posted 09 June 2011 - 09:47 PM
#17
Posted 10 June 2011 - 07:31 PM
You could try and find a Techco. Lisa at Speedlogix still has one. At 3.0 it does great on a 426
Oh, I'd surely get a 3.6KB. I love my 2.8 Anyhow, it's only window shopping right now. I need to learn to use what I've got and I really hope it holds together for a long time.
That being said, I was reading all the details of the BES motors in "Engine Masters" mag. They know what they're doing in detail so I thought I'd ask a few Qs
2009 SRT 6Spd KB@8PSI
[email protected]
Tuned by Tim@mph
#18
Posted 11 June 2011 - 08:16 AM
Thx Jeff and hemirob. I thought that having a lower CR would show when not in boost but seems it doesn't. PD blowers sure make a car nervous..
Yep, with a 426 my 2.8KB would need an upgrade. That's understandable.
Here's what I'd do.....
9:1 - 9.5:1 compression for a supercharged motor. You lose just a bit of power when out of boost due to the lower compression, however if you take that 6.1 and stroke it to a 6.4 you just made up your power and then some out of boost. That's one of the reasons I did a 6.0L on my 5.7. That bit of extra stroke makes for a nice torquey motor out of boost even with 9:1 compression.
-Speedy
Orange Krush
Arrington Powered 2009 R/T 6 Speed Tuned by [email protected]
#19
Posted 11 June 2011 - 05:35 PM
Here's what I'd do.....
9:1 - 9.5:1 compression for a supercharged motor. You lose just a bit of power when out of boost due to the lower compression, however if you take that 6.1 and stroke it to a 6.4 you just made up your power and then some out of boost. That's one of the reasons I did a 6.0L on my 5.7. That bit of extra stroke makes for a nice torquey motor out of boost even with 9:1 compression.
Yep makes sense. I'd just be worried about making the block a little more fragile. But then again, I guess a 6.1 bored to 6.4/392 can still take 14PSI and a little extra something from time to time. Worst case, I could get a brand new aftermarket 6.4 block. It's all conjunctures at this point anyhow. A guy can dream .
2009 SRT 6Spd KB@8PSI
[email protected]
Tuned by Tim@mph
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