LS1TECH - Camaro and Firebird Forum Discussion

LS1TECH - Camaro and Firebird Forum Discussion (https://ls1tech.com/forums/)
-   New Products Showcase (https://ls1tech.com/forums/new-products-showcase-129/)
-   -   New LM7 383CI Engine package! 540HP+/510TQ+ (https://ls1tech.com/forums/new-products-showcase/1840601-new-lm7-383ci-engine-package-540hp-510tq.html)

ATK Engines 08-01-2016 09:11 AM

New LM7 383CI Engine package! 540HP+/510TQ+
 
ATK HP is offering a new engine package based off the cast iron LM7 5.3 block. This engine produced 547HP/510TQ on the latest dyno session! It will come as a bare long block, but can be completed with an EFI or Carb setup as well. Other camshaft/power options available depending on application. Long block will have a special introductory price for LS1TECH members for $6475.00 and FREE SHIPPING in the main 48 states!



Iron LM7 5.3 block 3.903" bore
K1 4340 Forged 4.000" crankshaft 24 or 58 tooth
Scat I Beam Rods with ARP 8740 bolts
Wiseco Forged pistons with GFX Steel top ring 10.4:1 compression
CNC Ported core heads (#862 or #706) Stainless steel valves/titanium retainers, .650" lift springs
ARP Head bolts
Stock rockers with Trunion upgrade
LS7 Lifters
Custom Hyd. Roller Cam
ATK 5/16 .080 wall pushrods
Melling High Pressure oil pump
King XP Bearings
Billet .250 Seamless Roller Chain


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