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Technical Information

    The VW air cooled engine requires periodical head work. Guides and springs wear and exhaust valves erode. We have found that the stock VW engine, when driven normally, requires checking at the following recommendations. Sedan 70,000, Type III 60,000, Type II 40 to 45,000 miles. Now, if you have a higher lift, faster ramp camshaft, you must check for guide wear sooner (to prevent burned and/or broken valves). If the valve does not come down straight on the seat due to guide wear it takes longer to cool. If bad enough, it will try to bend the head of the valve when it hits the seat crooked, it rotates and hits in a new spot, bending it in a new direction. When bent back and forth enough it breaks. The guides may be checked with the engine together by moving the spring/retainer/valve up and down when in the adjusting position. Valves must be checked and set regularly, about every 3000 miles as recommended by VW. They get tighter, not looser, and will burn prematurely if this is not done.
    Note: When the head is properly ported and polished it will hold the guide in correctly when cut for inner and outer/triple springs. We have street engines with over 100,000 miles with this done and not one guide has come loose.


     Product Name   Description   MSRP Price   Our Price+   Cash Price 
     LA HEAD001  Inspect customers head for leaks & cracks.   $57.13   $39.95   $39.95 
     LA HEAD225-8  cut all 8 bosses for inner and outer springs.   $63.90   $45.00   $45.00 
     LA HEAD229  Labor to remove and install inner spring. Per each.   $46.50   $33.80   $32.50 
     LA HEAD230  Remove and install valve guide with uncut boss. Guide cored to relieve wall tension to prevent hole damage during removal. Per guide.   $13.50   $9.83   $9.45 
     LA HEAD230-O  Install oversize guide. Per guide.   $13.51   $9.83   $9.45 
     LA HEAD230-R  Ream and install o/s guide   $55.75   $40.56   $39.00 
     LA HEAD231  As LA HEAD230, for heads that have cut down guide bosses for dual springs. We will not change guides in heads that have been incorrectly ported, where the intake guide boss has been removed. If the head maker cut the guide boss out of the intake port send the heads to them. Per guide.   $17.30   $12.58   $12.10 
     LA HEAD232  Knurl, ream and hone for minimum valve stem clearance. Saves guides in race heads. Stems are a much tighter fit than stock to keep the valve seating straight. Also, lubricates better. Per guide.   $53.65   $39.00   $37.50 
     LA HEAD234  Install replacement boss   $2.15   $1.56   $1.50 
     LA HEAD300  Move pushrod tube hole up about 0.060" and over 0.025" to allow more pushrod angle for high ratio rockers and extra large pushrods. Also enlarges the hole so you can use the pushrod tubes with larger end on one end, list in the VW section. Not required with Berg ratio rockers, however, is standard on all Berg race heads.   $89.60   $65.16   $62.65 
     LA HEAD310  Weld between fin   $57.20   $41.60   $40.00 
     LA HEAD320  Weld up head spring boss area and remachine for spring shim area to capture the spring. Increases spring life in higher RPM applications   $102.70   $74.67   $71.80 
     LA HEAD325  Shim springs for bus   $16.15   $11.75   $11.30 
     LA HEAD329  Cut for Chevy springs   $42.90   $31.20   $30.00 
     LA HEAD330  Weld machine Chevy springs   $143.00   $104.00   $100.00 
     LA HEAD331  Weld under intake   $64.35   $46.80   $45.00 
     LA HEAD340SF  Same as LA HEAD340 for Superflow heads.   $393.25   $286.00   $275.00 
     LA HEAD341  Improve flow, per minute; (price subject to change)   $715.00   $520.00   $500.00 
     LA HEADS340  Flow test. Labor charge to flow your heads. Our flow bench gives inch readings. We use a 12" constant. You must supply one intake, one exhaust valve and manifolds. Priced per set of heads.   $321.75   $234.00   $225.00 
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