Results 1 to 4 of 4

Thread: Merlin 540

  1. #1
    Essex29
    Does anyone have any info on the World Industries crate 540 that some of the online retailers sell? I think they have 9:1 compression. I have heard that they would not hold up with a blower ...anyone ever try? What needs to be upgraded internally
    ?

  2. #2
    Fiat48
    Is this the engine you are talking about? http://www.theengineshop.com/engine3.shtml

  3. #3
    Essex29
    Yup that's the one.

  4. #4
    Fiat48
    TECHNICAL SPECIFICATIONS
    Block: Merlin II cast iron with 4-bolt mains
    Cylinder heads: Merlin Rectangular Port (iron or aluminum)
    Crankshaft: 4130 forged steel (4.000" or 4.250" stroke)
    Pistons: JE 4.500" forged aluminum (9.5 compression)
    Connecting rods: Manley Sportsmaster 4340 forged steel
    Camshaft: Crane with Speed Pro lifters
    Intake manifold: Merlin aluminum 360┬░ single plane
    Carburetor: Modified 870 cfm Holley 4-barrel
    Valves: Manley Severe Duty® stainless steel
    Timing Chain: Manley True Roller
    Lubrication: Speed-Pro oil pump and Milodon steel oil pan
    Rings & Bearings: Speed-Pro ring set and Clevite bearings
    Ignition: HEI distributor, 8mm spark plug wire
    Valvetrain: Aluminum roller rockers, Manley 4130 pushrods
    Balance: Internally balanced, Hardcore CNC Balancer
    Assembly Components: Fel-Pro, ARP and Manley
    Accessories: Merlin chrome valve covers, chrome timing cover
    Warranty: 2-years or 24,000 miles. Issued by separate insurer
    Well, goodbye warranty but other than that and the compression is a little high, looks good. I'd keep the boost back a but because of 9 to 1 compression. No big deal. O ring the block or change the head gaskets to the new blower type gaskets that don't require O rings. More valve spring pressure also will be required. Sounds as if this is not a roller cam? The camshaft will work but not be the best.
    I am assuming you are talking about mild blown gas application. Higher boost pressure above 1o lbs, I'd be concerned with wrist pins, not familiar with that connecting rod or it's strength.

Similar Threads

  1. 540 merlin
    By dumbandyoung in forum Sandbar
    Replies: 38
    Last Post: 01-02-2007, 05:42 PM
  2. Merlin-X?
    By helter skelter in forum Gear Heads
    Replies: 2
    Last Post: 05-31-2005, 08:42 PM
  3. 540 Merlin
    By Riverready in forum Cats & Tunnels
    Replies: 12
    Last Post: 12-21-2004, 08:49 AM
  4. Merlin 540
    By Essex29 in forum Gear Heads
    Replies: 7
    Last Post: 02-01-2004, 09:06 PM
  5. Merlin Blocks
    By SnapperSnacher in forum Gear Heads
    Replies: 4
    Last Post: 08-24-2001, 05:56 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •