October '19

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OCTOBER 2019 THE SHOP 43 PRECISION ENGINE tures OE-style full skirts, any LS application oil pan would fit. Our Holley aluminum pan easily bolted up with a flush mount to the block skirts and front and rear covers. I always install the front and rear covers somewhat loose initially at the block. Using a straight-edge, I then make sure that the oil pan mating surfaces are flush and even with the block pan rails before fully tightening the front and rear cover bolts to 18 foot-pounds. The front and rear covers are secured with ARP 434-1504 (434-2502 is ARP's spec for the front cover, but the thickness of the COMP front cover requires the shorter 434-1504 bolts, same as the rear cover). The oil pan is secured with ARP kit 434- 6902. The front and rear covers and the oil pan were sealed with gaskets from our Fel- Pro set. Prior to pan installation, I applied a small dab of RTV at each corner of the pan rail where the pan meets the front and rear covers. Note: always install the rear main seal dry—don't lube the crank flange or the seal. Make sure the crank flange is dry. The Dart block features a dipstick hole in the block, the entrance of which is pocket- recessed. Our dipstick of choice is Lokar's XED-5008, a flexible unit in black. How- ever, the aluminum hose end at the base of the dipstick assembly interferes with the upper floor of the dipstick hole pocket, preventing full insertion. The solution is to relieve the angled recess upper floor on the block (this would be very easy during initial block prep by grinding off about 1/8-inch of the cast iron pocket). If using a traditional dipstick, clearance is not an issue. Just be aware of this if you plan to use a custom dipstick assembly. This isn't a fault by either Dart or Lokar, since neither the block nor the dipstick tube were specifically intended for this combo. NEXT TIME In Part III of this project, we'll cover balancer and timing pointer, coolant plumbing, lifters, cylinder heads, head stud nut torque, pushrods and the rocker system. MIKE MAVRIGIAN owns and operates Birchwood Automotive in Creston, Ohio, where he builds custom engines and street rods, and performs vehicle restorations. He has written thousands of technical articles, as well as nine books on automotive technology during the past 30 years. Mike can be reached at (330) 435-6347 or birchwdag@ Visit Birchwood's website at The front cover is COMP's LS unit that fea- tures threaded bosses that accept a BBC timing pointer. The cover is secured with ARP polished 12-point stainless bolts. An LS2-style camshaft position sensor mounts to the COMP cover. A TCI adjustable timing pointer was added to the left side. • Axial weld-bonding pliers eliminate provisional welding. • Straight line axial motion allows versatile offset clamping. • One hand clamping operation and release is fast and easy. • Forged steel construction extends tool life. • Durable finishes resist welding splatter. Six axial, weld-bonding pliers secure all types of joints to make welding easier for metal workers, autobody technicians and sheet metal fabricators. Make fast, accurate welds, even in tight spaces. WPAW WPAL WPAJ WPAT WPALL WPAJJ Available individually or as a 6-piece kit in a hard-shell case. Malco Products, SBC | Annandale, MN. U.S.A. | | ©2019 weld-bonding From Malco NEW axial pliers Malco_THE SHOP 7.125x4.875 May 2019.indd 1 3/15/19 4:34 PM

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