Question about a 350 setup
I came across this engine. I am looking to buy it if it is something I can build a street-able motor out of it. The lifters have never been installed and the engine is never been run.
So if I change out the carb, intake, and cam to something more mild would this be a good setup. I am not sure what cam or carb/intake setup but I would like to stay in the 425-475hp range. (The guy told me with the set-up the way it is it would be right around 600hp) Any info would be greatly appreciated.
Here are the specs:
Bottom end :
68 4 bolt main block. ( .30 )
Steel Crank ( .10/.10 )
TRW forged 11:1 Pistons.
Pete Jackson gear drive ( Noisy ).
Herbert Roller cam ( 308 duration )
Moroso 8qt. Pan and pickup.
Melling HV oil pump.
Polished "short" aluminum water pump.
ARP Main studs.
ARP rod bolts.
ARP Head studs.
1965 Double Hump 350hp 327 vette heads.
Screw in studs.
Manley valves ( 2.08/1.6 )
Manley push rods.
Crower roller rockers ( 1.5 )
Moroso rocker stud girdle.
Fabricated valve covers.
Wiend polished tunnel ram.
Dual Predator 6000 carbs.
Scoop for carbs.
Dual feed line w/ psi gauge.
Also comes with a Unilite distributor w/bronze gear.
Low Alternator mount w/ Alternator.
Crankcase evac kit.
Full length headers.
All the gaskets needed to install heads, intake etc...
Nice front mount motor mount for drag application w/ isolator pads.
The 11:1 compression ratio is too high for practical on street pump gas use.
A milder cam with shorter duration will make matters worse and the cylinder pressure will be even higher.
Build your own motor with a pump gas compatable 10:1 cr. Max 10.5:1 for the street. 10.5:1 requires the best availble pump gas and a very good tune.
Much beyond this is beyond what is practical for daily street duty.
More pain than gain.
10:1 works great.
Run it and Have Fun!!!
That is the answer you want to hear!! You can run more than 11.1 on the street and have have fun with it. I don't think you would want to drive it to work everyday, but to thump around town a couple times a week and get a cheeseburg on saturday night at the local drive-in would be fun. Ditch the carbs and put a set of Holley 660's on it, make sure they are matched. I had a 66 chevelle set-up almost the same way 355 11.1, old school tunel ram with 660's, th350 4000 stall, 3.55 rearend gear, ran 11:80's through mufflers without nitrous. I did run race gas on the street, another alternative is +100 E85, the good stuff. If you don't mind working on it would be fun. If you want to set-it and forget it this is not you, this will be babysitting project!
personally i think i would steer clear anytime someone has a 350 with what sounds like a stock crank (turned .010), and says it makes 600hp. to make that much power out of a 350 it would have to have in the 12:1ish comrpession, be turning 7500rpm (which would not fair well for the I beam rods or steel crank). then they say that have that much money into parts but yet put a set of 50+yr old design heads on it, i dont care if they have extensive port work done, that only means that they have a huge cross-sectional area and have horrible velocity in the lower lifts which makes for bad volumetric efficancy and crappy low end. i would be suprised is this motor made 475-500hp
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