Add this item to Cart for a combined free shipping deal
Click to enlarge photo

Listing Detail Tabs

GM 496 Stroker • Base Dressed Engine • Cast Heads • Flat Tappet Cam

HP & Torque: 480 HP / 550 FT LBS
Cast Iron Heads
Hypereutectic Pistons
Flat Tappet Cam
Cast Steel Crank
Part #: BP4966CTC

BRAND NEW BluePrint Cast Iron Block
4 Bolt Mains
One piece rear seal
Square and parallel decked
Align honed main bearing bore
Cylinders honed on computer controlled machine to within .0002
straightness and roundness
Cylinders are sonic tested for thickness

Rotating Assembly:
New cast crankshaft — 4.250" stroke & 6.135" rods
150,000 psi rod bolts
Hypereutectic pistons
Hastings moly rings
Rotating assembly balanced to within 2 grams
High volume oil pump

Cylinder Heads:
BluePrint Cast Iron
Hardened retainers and springs
2.3 swirl polished intake valves
1.880 swirl polished exhaust valves

Cam Specs:
Cam Type: Flat Tappet
.552 Intake .555 Exhaust
230 Intake / 236 Exhaust duration
@ .050 - 110 degree lobe separation

Ignition Timing:
10-16° inital and total timing 32-34° at 3500 rpm

Also Includes:
Intake Manifold — single plane, satin aluminum
800cfm Carburetor
Valve covers, oil pan and timing cover
Brass freeze plugs
Dyno test results shipped with engine

Factory Backed Warranty:
30 month / 50,000 mile

NEW BluePrint block manufactured
and machined in the USA.

Not for EGR

Freight can be arranged no problem but we need to know your location so we can give you a accurate freight quote.


This account has been set-up to solely promote the range of Blueprint Engines and accessories.

If you are in need of more parts to get your build going we can help with this as well. Please click here to ask a question
Your question and answer privileges have been disabled.
You must log in to view questions and answers on this listing. We recommend reading questions before you make any purchases.
You must log in to ask or answer questions posted. We recommend reading questions before you make any purchases. Available only to approved bidders. You must be an authenticated member to ask questions Find out more about becoming authenticated. Your account is in debt Your current account balance is You must credit your account to use this feature.
Firearms licence #
Firearms licence holder name
First name is required
Last name is required
Your current account balance is Please note you will lose your question and answer privileges if your account is in debt for more than 2 weeks. Credit your account.
I confirm that I am over 18 years old.
To prevent your personal details being misused please do not put emails or phone numbers in questions. Failure to comply may result in the suspension of your account. The seller cannot add a Buy Now price once bidding has started.

Shipping options

  • To be arranged
  • Seller allows pick-ups
  • Seller location: Christchurch City, Canterbury, NZ

Payment options

  • Other options
    Cash, NZ bank deposit