In Stock
Inspected & Documented
Condition notes recorded before palletizing.
2-Year Warranty
Covers block, heads and internal moving components.
In Stock & Ready to Freight
Crate Engines
ATK HP74 Chevy 350 Vortec 1996-2000 Truck Base Engine 315HP
€1,819.99
excl. VAT – import VAT and duties are payable on delivery to Norway · change country
United Kingdom · Ireland · Germany · France · Netherlands · Belgium · Spain · Italy · Portugal · Austria · Czech Republic · Poland · Sweden · Denmark · Finland · Greece · Hungary · Romania · Slovakia · Switzerland · Norway
+ freight from €89.00, insured road freight, priced by delivery region
(rates)
From €1,908.99 delivered
- ISPM 15 heat-treated Euro palletized & weatherproof shrink-wrapped
- Insured European road freight delivery with hydraulic tail-lift service
- Dispatches in 1–2 business days from our UK & European Logistics Centre
- Transit typically 1–3 business days (UK) / 3–6 business days (Continental Europe)
Need a matched transmission, controls or wiring package? Speak with a parts specialist.
Details & Inspection Notes
The HP74 is a Vortec-style 350 long block built for 1996-2000 Chevy and GMC trucks and SUVs, rated at 315 hp and 400 lb-ft of torque. ATK tested it on an engine dyno running an aftermarket EFI system, so real output depends heavily on the fuel and tuning setup you pair with it.
The one step you cannot skip
This engine needs its ECM tuned and headers fitted to reach its rated output, and ATK warns plainly that skipping the tune can damage the engine. Treat a calibration appointment as part of the swap budget, not an afterthought, since the combination is built around that tuning step rather than around bolt-it-in simplicity.
What is inside
Cast iron Vortec heads turn a 1.5 rocker ratio through stamped-steel arms, feeding hypereutectic pistons that hold 9.3:1 compression under a single roller timing chain, a lighter-duty chain than the double roller chains ATK uses on its higher-output engines. Bore is 4.040 inches and stroke is 3.480 inches, for 350 cubic inches total. It is a new build rather than a core exchange, and ATK recommends 91 octane fuel or higher once the tune is dialed in.
Q: Can I run this without tuning the ECM first? No; ATK states that skipping the tune risks engine damage.
Q: What vehicles is it built for? 1996-2000 Chevy and GMC truck and SUV applications.
Startup & Installation Checklist
- Inspect all external gaskets, seals, spark plugs and timing components prior to installation.
- Refill engine oil, transmission gear oil and coolant to manufacturer-specified capacities before initial cranking.
- Prime the lubrication system and verify ECU wiring pinouts, sensors, and ground connections.
- Our 2-year warranty covers internal lubricated components, cylinder heads and engine block from delivery, in addition to your statutory rights.
Full terms: 2-year warranty · returns
