Big bore.. What stroke?
Thread Starter
Staging Lane
Joined: Feb 2013
Posts: 79
Likes: 0
I have a certain goal that I must achieve and I thought the 4.00 might make a difference
Stroke length I believe the ERL sleeves are roughly the same length as the Darton sleeves I install 5.800". The sleeves will support a 4.250" stroke for racing use. I recommend a max. stroke of 4.125" to get some longevity from the engine. You don't want to be pulling the engine down every 20,000 miles to re ring it.
I have done quite a few of these blocks for 454" builds which is what you end up with at 4.185" bore and 4.125" stroke. These engines generally max. out hp around 6,300 to 6,400 rpm unless you spend money on really good heads and a custom intake and a big cam. Keep in mind that the higher you rev the engine the more likely something will break in the valve train over time.
You should have no problem running nines if you can get the suspension dialed in.
Steve
I have done quite a few of these blocks for 454" builds which is what you end up with at 4.185" bore and 4.125" stroke. These engines generally max. out hp around 6,300 to 6,400 rpm unless you spend money on really good heads and a custom intake and a big cam. Keep in mind that the higher you rev the engine the more likely something will break in the valve train over time.
You should have no problem running nines if you can get the suspension dialed in.
Steve
__________________
Steve Demirjian
Race Engine Development
Oceanside, Ca.
760-630-0450
web: www.raceenginedevelopment.com/
e-mail: race-engine-development@***.net
Steve Demirjian
Race Engine Development
Oceanside, Ca.
760-630-0450
web: www.raceenginedevelopment.com/
e-mail: race-engine-development@***.net
TECH Apprentice
Joined: Jun 2009
Posts: 318
Likes: 5
From: Oklahoma
I believe the ERL sleeves are roughly the same length as the Darton sleeves I install 5.800". The sleeves will support a 4.250" stroke for racing use. I recommend a max. stroke of 4.125" to get some longevity from the engine. You don't want to be pulling the engine down every 20,000 miles to re ring it.
I have done quite a few of these blocks for 454" builds which is what you end up with at 4.185" bore and 4.125" stroke. These engines generally max. out hp around 6,300 to 6,400 rpm unless you spend money on really good heads and a custom intake and a big cam. Keep in mind that the higher you rev the engine the more likely something will break in the valve train over time.
You should have no problem running nines if you can get the suspension dialed in.
Steve
I have done quite a few of these blocks for 454" builds which is what you end up with at 4.185" bore and 4.125" stroke. These engines generally max. out hp around 6,300 to 6,400 rpm unless you spend money on really good heads and a custom intake and a big cam. Keep in mind that the higher you rev the engine the more likely something will break in the valve train over time.
You should have no problem running nines if you can get the suspension dialed in.
Steve
https://ls1tech.com/forums/showthread.php?t=621016
4.2050/4.500 for racing using a 6.800 rod I. The super deck configuration.
http://www.gmhightechperformance.com/tech/lsx_engine/1103gmhtp_reinforced_re_sleeved_ls_blocks/viewall.html
And article on mark koehlers 440 built by Kurt urban and runing a 106mm turbo.
Beleive = you don't really know.
https://ls1tech.com/forums/sponsor-vehicle-projects-shop-tours/621016-sam-erl-wiseco-pistons-500-ls2-buildup.html
4.2050/4.500 for racing using a 6.800 rod I. The super deck configuration.
http://www.gmhightechperformance.com...s/viewall.html
And article on mark koehlers 440 built by Kurt urban and runing a 106mm turbo.
https://ls1tech.com/forums/sponsor-vehicle-projects-shop-tours/621016-sam-erl-wiseco-pistons-500-ls2-buildup.html
4.2050/4.500 for racing using a 6.800 rod I. The super deck configuration.
http://www.gmhightechperformance.com...s/viewall.html
And article on mark koehlers 440 built by Kurt urban and runing a 106mm turbo.
TECH Apprentice
Joined: Jun 2009
Posts: 318
Likes: 5
From: Oklahoma
Steve is right, ERL uses their own 5.8" long sleeve in a standard deck block, which I believe is what the OP is talking about when he mentioned his resleeved 5.3 block. That SAM engine uses a deck spacer essentially making it a tall deck block before the actual tall deck blocks were available. It obviously will have a longer sleeve and support more stroke, but that's not really relevant here.
TECH Apprentice
Joined: Jun 2009
Posts: 318
Likes: 5
From: Oklahoma
TECH Senior Member
Joined: Feb 2009
Posts: 5,445
Likes: 4
more stroke is more cubes .you will need the right heads to feed it .buy the cam last .you can play around with tire size to get the rpm right at the strip.you will run mild 9s if you talk to the right people.
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Staging Lane
Joined: Jun 2013
Posts: 90
Likes: 39
Then why all people prefer going with the 4.00 and claiming that it has more RPM! ive heard once that bigger stroke will have extra weight that will affect the RPM acceleration and wont help the motor to rev up to 7000RPM!!
btw, I was waiting for someone like you to answer this question. Expert engine builder.
If so, shall go with the 4.100 or 4.125!
For my application
btw, I was waiting for someone like you to answer this question. Expert engine builder.
If so, shall go with the 4.100 or 4.125!
For my application
Thread Starter
Staging Lane
Joined: Feb 2013
Posts: 79
Likes: 0
Any other recommendation!
Thread Starter
Staging Lane
Joined: Feb 2013
Posts: 79
Likes: 0
It's just up to what pistons etc are available for what you want to do. The 4.000 is the most common and has the most options. I've even done many 4.250s but those need custom pistons and a sleeved block with longer cylinders. Wiseco has many pistons for the 4.000/4.100/4.125 deals as shelf stock.
Any orher suggestion/recommendation for the build!
FormerVendor
Joined: Nov 2005
Posts: 191
Likes: 0
From: Indiana
unless your running a sheet metal intake and some crazy *** heads the bigger the cubes the lower your powerband is going to peak, you may never fully utalize the cubes if you go to big. Piston speed is a big factor and the extra friction from it does rob horsepower but the cubes do make up for it in the same sense a supercharger does by making more than it steals. I personally would use a 4.0 bore and allow for the engine to still be able to breath at around 6500 unless you plan to go sheet metal or high rise manifold, if your using a fast carb style intake then the more stroke the better since you will lose alot of tq with those intakes the stroke will compensate as well as the carb style intake will allow for more air at higher rpms
Thread Starter
Staging Lane
Joined: Feb 2013
Posts: 79
Likes: 0
unless your running a sheet metal intake and some crazy *** heads the bigger the cubes the lower your powerband is going to peak, you may never fully utalize the cubes if you go to big. Piston speed is a big factor and the extra friction from it does rob horsepower but the cubes do make up for it in the same sense a supercharger does by making more than it steals. I personally would use a 4.0 bore and allow for the engine to still be able to breath at around 6500 unless you plan to go sheet metal or high rise manifold, if your using a fast carb style intake then the more stroke the better since you will lose alot of tq with those intakes the stroke will compensate as well as the carb style intake will allow for more air at higher rpms
Your bore is 4.185 and have the option to go with big runner heads like the ls7 285 heads and TI valves?
The only thing that restricts is the compression. Which shouldn't accede 11:8
