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Discussion Starter · #1 ·
I found a lot of questions around if the stock lsa oil squirters will clear different piston/rod combos when I was searching. Posting this as a resource for other people in the future.

Summit Racing brand Pro LS stock stroke piston/rod combos clear the factory oil squirters with very minor bending of the oil squirters.
 

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2014 CTS-V Sedan A6
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Thanks good to know. I was actually looking at doing a 650whp build on my stock LSA block down the road and a budget friendly forged rotating assembly. Honestly I was just thinking about removing the squirters because of piston clearance, but if there's an option that doesn't require you do notch the pistons, I'm all for it. I'm all about keeping those squirters on a lower HP build where you can spare the oil volume. lol


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Discussion Starter · #3 ·
I've heard arguments for keeping oil squirters and for removing them on high hp stuff. Honestly I am not knowledgeable enough to say for sure what the right answer is lol. My thought process is that people make 700-800 on the stock long blocks with max effort LSA set ups, so even a cheap forged rod/piston should help it live at 800-900. Anything over that you probably want a 6 bolt head anyway
 

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I think most American car guys looking at high HP builds look at 1/4 and 1/8 mile drag cars to guide their own builds. It is such a short length of time under load that piston squirters aren’t necessarily worth the risk of added complexity.

Where they do come into play is doing half mile or standing mile or playing on the highway where you are under heavy load for prolonged periods of time. In those situations, you want to keep as much of the heat in the combustion chamber stable and managed as possible to avoid pre ignition.

I’m not convinced they starve anything for oil flow unless an improperly specd oil pump is used. It probably adds to the wind age in the case a bit but I’d think most of the oil jets to the back of the piston and doesn’t end up as a mist.

Just my non professional opinion and preference. There are plenty of builds with and without to defend either side of the argument.


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