Came in yesterday, everything looks top notch! Crank scraper and baffle 
Improved Racing Crank Scrapers
We'll post up with pics as soon as they're ready!
The new scraper will be designed for:
- 4.000" stroke with aftermarket rods
- ARP main studs
- ARP rod bolts
We will continue to make a scraper for the 3.622" stroke factory bottom end. Does anyone see a need for a scraper for the factory 3.622" stroke with ARP studs and rod bolts?
The new scraper will be designed for:
- 4.000" stroke with aftermarket rods
- ARP main studs
- ARP rod bolts
We will continue to make a scraper for the 3.622" stroke factory bottom end. Does anyone see a need for a scraper for the factory 3.622" stroke with ARP studs and rod bolts?
We'll post up with pics as soon as they're ready!
The new scraper will be designed for:
- 4.000" stroke with aftermarket rods
- ARP main studs
- ARP rod bolts
We will continue to make a scraper for the 3.622" stroke factory bottom end. Does anyone see a need for a scraper for the factory 3.622" stroke with ARP studs and rod bolts?
The new scraper will be designed for:
- 4.000" stroke with aftermarket rods
- ARP main studs
- ARP rod bolts
We will continue to make a scraper for the 3.622" stroke factory bottom end. Does anyone see a need for a scraper for the factory 3.622" stroke with ARP studs and rod bolts?
Thread Starter
LS1Tech Sponsor
Joined: Oct 2009
Posts: 515
Likes: 40
From: Orlando, Florida
0.040" +/- 0.020" is what we shoot for. You can use feeler gauges to check the clearances.
Thread Starter
LS1Tech Sponsor
Joined: Oct 2009
Posts: 515
Likes: 40
From: Orlando, Florida
Not yet, we are still waiting on a few parts for test fitment. We will get it out as soon as we can.
I'd want to see stock stroke with forged rods and ARP bolts. For a lot of FI builds, guys run either the 5.3 or 6L iron block with the stock crank and h-beam rods and it's a good combo. I don't know if the ARP main studs are a requirement.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
I bought a crank scraper from Improved Racing that is being installed in 4.0" stroke application. I will start another thread to show what is required to fit for those who can't wait.
In for results on one of these... I don't have the pan on my 370 yet, debating on whether or not one of these would be worth throwing on.
Any downsides to running one of these? My setup is more street-oriented.
Any downsides to running one of these? My setup is more street-oriented.
Last edited by Inflame; Oct 13, 2014 at 07:51 AM.
Thread Starter
LS1Tech Sponsor
Joined: Oct 2009
Posts: 515
Likes: 40
From: Orlando, Florida
ARP main studs also require a completely different scraper because the studs are bigger than factory, so all of the holes have to be larger. They are also slightly taller, which will affect the geometry of the scraper a little if we want to maintain the same clearances for maximum performance.
Thread Starter
LS1Tech Sponsor
Joined: Oct 2009
Posts: 515
Likes: 40
From: Orlando, Florida
Awesome, thanks for posting the pics! We got a set of ARP rod bolts and we will be updating our scraper to add that little bit of extra clearance. That amount shouldn't hinder performance significantly if using factory bolts, either.
Last edited by ImprovedRacing; Oct 13, 2014 at 09:49 AM.
I'm not afraid of drilling a couple holes if you don't plan on releasing one though. Let us know.
Thread Starter
LS1Tech Sponsor
Joined: Oct 2009
Posts: 515
Likes: 40
From: Orlando, Florida
To clarify, are you using the factory crankshaft or aftermarket? Even if it's the same stroke, a forged crank will require a different scraper than the factory crank.
Factory crank at stock stroke. Anyone who spends the additional money on a forged crank is getting more cubes. But the stock crank is plenty strong for most sub 1k HP builds when used with quality rods.
Thread Starter
LS1Tech Sponsor
Joined: Oct 2009
Posts: 515
Likes: 40
From: Orlando, Florida
Okay cool, thanks guys.