This is a sample from the 300 build info that will be in the book:
Matt Lesoine's 1966 Buick 300 V8 Rebuild, (300 deck height =9.45") Mains/Rods .010"under; 300 bores .070" over
[265 Chevy bore is 3.75" (same as Buick 300) +0.070" = 3.82"]
Venolia forged flat top pistons for a 265 SBC, .070 over with very small custom valve reliefs, floating wrist pins with spiro-locks, set .010" down in cylinder
Early 6” Chevy rods milled to Buick width with relocated bearing tang, roller pilot bearing. All machine work done by Hansen Racing, 134 Wood Ave, Middlesex NJ, (732)748-9770.
Bottom end: Blockbored .070 over, Buick 300 crank turned .010/.010; Deck the block, make sureblock is square, new freeze plugs, de-burr lifter valley, etc. Scat early SBC 6.0" forged connecting rods, machined to fit the Buick crank, ARP main bolts, Clevite bearings andHastings rings, Enlarge oil galley to 1/2" and use the 1/2" pick upfrom 3.8V6; maybe add deeper sump to oil pan and crank scraper/windage tray.
Cam/Valvetrain: I changed my cam and valvetrain decision over to the custom COMP hydraulic cam that Dave Nelson used in the Hot Rod 349 stroker. He also supplied the stud mounted conversion set up (similar to Mark Burton's for the 350s) and COMP Ultra Pro roller rockers.
Heads: fully ported (Gessler Level 3) aluminum, biggest valves possible with multi angle valve job, back cut valves, springs to match cam, guides machined for clearance, blocked exhaust cross-overs, polished combustion chambers, etc. Want to use the .020 steel shim head gaskets and ARPstuds.
Air/Fuel Delivery: Aluminum intake manifold port matched to heads with custom grinding/welding convert it to a singleplane ,GS350 fuel pump with 3/8 line from pump to carb, -8AN line from tank to pump, Edelbrock Performer series carb, 500, 600, 750, 800 cfm (will have to seewhat works the best), adjust/change metering rods as needed
Ignition: stock distributor with adjustable vacuum advance, tuned mechanical advance (powertimed), Pertronix points eliminator kit, MSD 6AL or similar to light it. Have to see what plugs to use
Exhaust: Set of full length headers (old Poston's headers, equal length 1-5/8" primary diameter,3" collector) with 12" long collector extensions and 2.5"mandrel bent exhaust with "X" pipe.
Vehicle: 1965 BuickSkylark hardtop w/bench seat
Transmission: Borg-Warner T10 4 speed with RAM "Muscle Car" series10.5" clutch
Rear End: GM8.5" 10 bolt 3.42:1 gears with positraction differential
Compression ratio will be HIGH (12:1 calculated) so racefuel/AV GAS is required.
Having compared the 300 aluminum and cast iron heads side by side; there is a difference in port sizes, but it's not as bad as everyone else on the board will tell you. The real big issue is the small valve sizes on the aluminum heads, the cast iron head valve sizes aren't much better but they are bigger. I am using the aluminum ones due to the high compression ratio. However the cast iron set I have was (street level 3) ported by Gessler, and they flow196/134 @.600" lift, 28" H2O; so I figure that the aluminum set fully race ported should be close or even better. Or if needed, I could use the new TA Performance aluminum rover heads.
PAW timing chain set: PAW501
PAW timing lifters: PAW 846
Crower Cam (summit): (CRO-50234)
Engine rebuild set – bearings/gaskets
Clevite Main Bearings: MS961P10
Clevite Rod Bearings: CB610P
Clevite Cam Bearings: SH1360S
Fel-Pro Gasket Set: FS8172PT-2
6.0" rods/ARP rod bolts (summit)(SCA-2600020)
Custom Venolia forged pistons 265 chevy .070" over
Hastings Piston Rings
Oiling modifications: enlarge main block galley
Gessler Head porting (also valve springs suitable for cam)
Helicoil aluminum head threads (intake, exhaust, accessory mounts)
T&D roller rockers
1964 aluminum intake modified to approach single plane
Oil pump: (Melling #K201)
Oil Pick-up 1/2"(Melling #20-IS2)
Fuel Pump 1970 GS 350(Bosch #68511)
Water Pump 1970 GS 350(Cardone #5511152)
ARP main bolts ,ARP head studs (215 Buick/Rover?)
Front cover w/neoprene seal
Headers (w/Techline coating by TriShield Performance)
Carburetor (Edelbrock500, 600, 650, 750, 800) Will try them all
Summit Ignition Box (SUM-850610)
Points Cap/HEI posts (summit);(MSD-84333)
Dist. Advance kit (summit)(CRN-99601-1)
GM Points Rotor (rockauto.com)
Plug wires (summit) (P808215}
Pertronix Ignitor (summit) (PNX-1181)
Spark Plugs (summit)(ACF-R45S)
Spark Plugs (summit)(ACF-R43S)
The following are part numbers for equivalent items from TAPerformance:
Double roller timing chain set: TA1521B (3 key)
Double roller timing chain set: TA1523 (9 key billet)
1969 and earlier valve lifters:TA1406
Engine gasket set:TA1705-300
In addition, the 1969 and earlier lifters and steel shimhead gaskets are available from:
Gessler Head Porting
25 Four Corners Road Blairstown, NJ 07825 (908)362-7692