BIG 3 / MMRE SHOCK FACTOR 737 - LT 6.2L PERFORMANCE LONG BLOCK
An airflow-focused LT build with Katech CNC-ported RaceKing cylinder heads and a matched performance valvetrain. Advertised long-block package: $12,777. No core or exchange required.
BUILD HIGHLIGHTS
- RaceKing One stock-style remanufactured bottom-end foundation
- RaceKing heads with Katech Rottler-CNC porting and CHE guides
- Manley valves, 1209X springs, titanium retainers and chromoly seats
- CHE trunnion rocker upgrade and BTR chromoly pushrods
- BTR, GPI or custom Big 3 camshaft selected for the combination
- ARP studs; exact fasteners and sealing package on the build sheet
BUILT AROUND YOUR APPLICATION
For a verified LT1- or L86-based vehicle or swap. Tell us your VIN/RPO or donor engine, intended fuel, induction, power goals and vehicle use. We match the camshaft, compression, head program, oiling and supporting hardware on a written quote. Naturally aspirated and proposed power-adder combinations require individual review; the series name is not a guaranteed horsepower rating.
SHOP WORK
Castings and hard parts are cleaned, inspected and measured. Machining follows measured condition; assembly includes clearance, ring-fit, deck-condition and valvetrain checks. Engine dyno or Spintron testing is included only when specified on your build sheet.
WHAT IS INCLUDED
Assembled long block with the components specified on the signed build sheet. Intake, fuel system, oil pan/front cover, sensors, wiring, accessories, exhaust and calibration are excluded unless listed in the quote. Professional calibration is required and quoted separately unless included in writing.
BUILD TIME / DELIVERY
Custom built to order. Approximately eight weeks to build and ship; confirm the current schedule before payment. Freight is additional and quoted using your ZIP code, commercial or residential destination and unloading needs.
WARRANTY
One-year limited parts-only performance-engine warranty, subject to written terms, installation, break-in, maintenance and calibration requirements. Labor is not included.
PHOTOS
Actual Big 3 shop images of representative Gen V LT builds and head work, not the exact engine offered. Visible accessories are included only when listed on your build sheet.
BIG 3 ENGINES & TRANSMISSION - Troup, Texas
903-262-9502 | SKU B3-LT-PERF-SHOCK737
Message your build details and mention RacingJunk for a written package and freight quote.
