Anyone know anything about SVO "N" heads?

Discussion in 'Technical' started by Derek 5oComet, Jun 24, 2008.

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  1. Derek 5oComet

    Derek 5oComet Tire burner

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    Ok guys it's been a few weeks but i managed to find the time to go pick up these heads. The only numbers i have found are N 91 5 5 and 624 H.
    Heres some pics that mabee able to shed some light on the subject.

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    Derek 5oComet, Jul 28, 2008
    #16
  2. ratio411

    ratio411 Member

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    World Products Windsor SR heads IMO.
    That would account for the big "W" under "Windsor"
    If they were Windsor JR heads, I would think you would see "JR" somewhere.:huh:
     
    ratio411, Jul 28, 2008
    #17
  3. ratio411

    ratio411 Member

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    Hold on...
    Do the head bolt holes have removeable bushings?
    If so, they could either be JR or SR...
    But if the holes are cast small for 302 head bolts, then they are JRs.
    I can't quite tell from the pics. The holes are small, but I can't tell if they are bushed or just cast small.
     
    ratio411, Jul 28, 2008
    #18
  4. Derek 5oComet

    Derek 5oComet Tire burner

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    I took a good look at them and they don't appear to be bushed and stock 302 head bolts fit right. Cool thanks for the input.
     
    Derek 5oComet, Jul 28, 2008
    #19
  5. spork1o1

    spork1o1 Member

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    heres a pic of fords n351 heads look at the size of the exhaust ports!!

    [​IMG]
     
    spork1o1, Jul 29, 2008
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  6. ratio411

    ratio411 Member

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    99% sure they are Windsor JRs by World Products at this point.
    If that is the case, they should have around 60cc chambers and 1.94" valves.
     
    ratio411, Jul 29, 2008
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  7. Derek 5oComet

    Derek 5oComet Tire burner

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    Well i definately know that i don't have a pair of those.
    HOLY SUFFERIN POPSICLE STICKS!!! Them ports are huge!!
     
    Derek 5oComet, Jul 29, 2008
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  8. ratio411

    ratio411 Member

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    I think the first N heads had the same port, but I seem to remember the bolt holes being on angle, like a 351c exhaust bolt pattern. I might be thinking of another head, but N with that pattern, mid to late 80s, all rings a bell.
     
    ratio411, Jul 29, 2008
    #23
  9. ratio411

    ratio411 Member

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    ratio411, Jul 29, 2008
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  10. PaulS

    PaulS Member extrordiare

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    Well the chambers are slightly different and I don't see guide plates but they are a close match.
     
    PaulS, Jul 29, 2008
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  11. ratio411

    ratio411 Member

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    I wish I were closer, I'd buy them from you...

    Wait, you are WAY north.
    I'll rephrase that:
    I wish you were closer, I'd buy them from you...;)
     
    ratio411, Jul 29, 2008
    #26
  12. Derek 5oComet

    Derek 5oComet Tire burner

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    Now that i know what they are i will probably look into putting them on the Comet this winter.Maybee a cam change too. The little sucker goes pretty good now with stock E7 heads,this could get interesting.....
     
    Derek 5oComet, Jul 31, 2008
    #27
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