|
Re: Picked up a god project engine.
Quote:
Originally Posted by Eggman63
Going to install a summit 1787 cam, 204/204-.427/.427 on a 110 lsa,valve springs and seals,1.5 forged roller tip rockers,Streetmaster intake,1406 carb,HEI,jegs 2000-2300 converter,Turbo 350,oh and full length headers with full 2.5’ exhaust. This should be fun!
|
The key to choosing a cam for an engine with stock compression (probably 8.0:1 or less) is making sure the intake valve doesn't close too much later on the compression stroke than with a stock cam. 204/204 with a 110 LSA isn't optimal, but probably won't kill the compression too much. I'd prefer a 204/204 cam with a 108 or even 106 LSA to get the intake valve closed sooner.
Back in the 1980s, the 305 HO used in the Z28 had a 195/202 cam with .390"/.410" lift, but I can't remember the LSA. And those engines may have had better heads and higher compression than your Targetmaster.
I suggest googling "Chevy 305 HO" to learn more about those engines.
Here's something to start: https://www.thirdgen.org/forums/tech...een-305-a.html
Just found these little known Comp cams with 108 LSA:
https://www.summitracing.com/parts/c...make/chevrolet
https://www.summitracing.com/parts/c...make/chevrolet
__________________
Mike
1969 C10 LWB -- owned for 34 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes.
1982 C10 SWB -- sold
1981 C10 Silverado LWB -- sold, but wish I still had it!
1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming.
Retired as a factory automation products salesman.
Worked part-time over the years for an engine builder and a classic car repair shop.
Member here for 23 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!
|