Boost the performance of your ride to street standards with this ATK SP48 Chevy 434CI Short Block Forged Flat Top. It is designed with high cubic inches to produce more power for hardcore street and race cars. Its rotating assembly is fully forged, balanced and blueprinted for high-powered performance.
Camshaft Bearings: Installed & Clocked to OEM Position
Freeze Plugs: Brass Installed & Sealed
Oil Galley Plugs: Installed & Sealed
Weight: 285
Every great build needs a solid foundation! For that reason, we take the hard work out of the picture by selling short blocks that are ready for you to complete yourself. Our GM Short Blocks are most commonly packaged as the engine block assembled with Pistons, Piston Rings and Crankshaft installed.
ATK specializes in muscle. With the highest quality internal parts and Dyno Proven combinations of every engine built, ATK is able to add the most bang for your buck and back it up with an industry leading warranty.
Don't forget the engine paint!
In the Box
Guides & Accessories
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Questions & Answers
Would this engine be a good combo to match to my edelbrock e force supercharger? Used the blower on my sbe 305 vortec at 11psi for years ran great untill it didn’t wanna be sure this thing will live with 9-11psi of boost being crammed down its gullet
Asked by: Anonymous
Its you choice, there are a number of ATK or Blueprint engines will fill the bill, it up to HP and Cubic Ins.
then long or short block, dressed or undressed.
Answered by: Anonymous
Date published: 2023-09-14
Is there only the flat too option on pistons or could I opt for higher compression?
Asked by: Hoss
You should contact ATK Performance directly to obtain the answer to your question. Contact them @ 1-866-721-2315