Another 292 build

[67 twins]

Originally Posted by '68OrangeSunshine

I've built two 292s. Once in 1977 and again in 2005. Ran the '77 build until 2002, for 250,000 miles and started the next build.
The current block is the original engine, which I put up in crates after the '77 project. It was well-preserved, so I had the machine shop hot tank and bead blast the exterior and bore out the cylinders to .030 over. Chrome-moly rings. ARP fasteners. Stock con rods and 12 lobe crank were good, so they were balanced by the shop. New Badger cast pistons. [First build, I had TRW forged pistons, but they were NLA in '02]. Head got new stellite valves and seats. Intake valves were 1.84'' [V8 307 type] while stock intake valves are 1.6''. Exhaust valves still 1.5'' stock size.
Crane Cam 260H. GM L6 ''lowboy'' HEI. Edelbrock 1404 [500 CFM] on Offy 4V intake and Clifford long tube headers w/ 'N' pipe crossover, dual turbo mufflers.
Vehicle is '68 C/10 stepside shortbed, originally optioned w/ 292 L6, SM 465, and 12-bolt Corp 3.73 rear. Eaton posi and Centerforce II clutch added later.
When running best, gauges show: 700 RPM, 185* H2O, 40 PSI O.P., 17.5'' Hg at idle.
Runs well in city traffic. Freeways, I like to hold at 70-75 MPH, as 51 y.o. chassis tends to rattle.
I prefer it to the stock 350 V8 in my '71 GMC Jimmy.

Just two things I wanted to note. First stock intake valve size is 1.72 not 1.6. Second I too prefer to drive my 292 4 speed truck over any of the other trucks in my signature.