HpGains LLC

08/30/2026

GLF Armory ag34ggg time to clean up the overspray Onesimus Guice

07/30/2026

Everyone, meet Surley.
It surley will be a while before she’s done… but it’ll be worth it. 😅🔧

07/03/2026

Looking for someone who can make this adapter plate out of 3/4” aluminum.

This will be used for an Eaton M112 supercharger to a 4150 intake manifold.

Please share if you know someone who does quality CNC work. Thanks!

07/03/2026

🚨 Exciting News from HP Gains! 🚨

HP Gains is now an authorized Fuel Injection Clinic (FIC) reseller!

Whether you’re building a street car, race car, boosted application, or replacing worn-out injectors, we can provide genuine Fuel Injection Clinic injectors at competitive pricing.

Need a quote? Send us your engine combination, horsepower goal, fuel type (gas, E85, methanol, etc.), and we’ll help you choose the right injectors for your build.

📩 Contact HP Gains today for pricing and availability! Onesimus Guice

07/01/2026

Doctor said I need to take a break. So I did, I cleaned up the shop!

06/27/2026

06/26/2026

GM 243 LS Cathedral Port Heads – Fresh Machine Shop Build – PAC 1215 Springs

$1,100 OBO

For sale is a pair of genuine GM 243 cathedral-port LS cylinder heads. They were professionally freshened by a machine shop and have never been installed or run since the work was completed.

Features:

* Genuine GM 243 castings
* Professionally cleaned and inspected
* Fresh valve job
* PAC 1215 performance valve springs
* Never installed after machine shop work
* Ready to bolt on

These heads are an excellent upgrade for LS1, LS2, 4.8L, 5.3L, 6.0L LQ4/LQ9, and other cathedral-port LS engines. Perfect for naturally aspirated or mild boost applications with the right camshaft.

No trades. Cash only.

Price: $1,100 OBO

Serious inquiries only. If the ad is up, they’re still available.

06/10/2026

1968 Chevrolet 327 Small-Journal SBC – Forged Crank & Rods

For sale is a genuine 1968 Chevrolet 327 small-block Chevy engine.

• Small-journal 327 block
• Date code H-6-8 (August 6, 1968)
• Block bored .030 over
• Original forged steel crankshaft
• Original forged connecting rods
• Pair of 3947041 (“041”) performance heads included
• Great foundation for a period-correct Camaro, Nova, Chevelle, Corvette, or hot rod build

Hard-to-find small-journal setup. Perfect for restoration, nostalgia drag racing, or a traditional high-performance SBC build.

$2,500 OBO

Located in Cocoa, FL (32926)

05/30/2026

HP Gains ®

05/29/2026

Rocket explosion Space Coast

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