327 engine dyno

Had an engine assembled by a local machine shop for a '64 corvette convertible. 327 engine, dynoed at 431 hp after assembly and no tuning. We were all surprised as it exceeded our expectations. Going in Monday morning to get the official runs and dyno sheets and take some video. Just wanted you 327 fans to hold out some hope.

I picked a lot of parts for the build as well as the shop, so I feel a little responsible for it. The engine is for my fathers car and he's pretty busy.

327 block, .040 over
Stock replacement Speed Pro forged pistons .125" dome
Stock rods and crank (small journal)
Fully balanced lower with TCI Rattler balancer

Afr 195 eliminator heads 65cc; c/r around 10.5-11 I'd guess
Erson roller cam swap 226-234, .548-.548"
1.5 alum. rockers

Edelbrock performer rpm intake
MSD probillet distr. with box

Edelbrock performer 600 carb.

I'll post the dyno stuff when I get it Monday, but this thing has me psyched!
All done on pump gas and hasn't had a lick of tuning yet. We were hoping for 400hp and we got it so far. Going in a '64 stingray 4spd.

 

Good job..........any idea what the compression ratio is?

 

He listed it at 10.5 - 11.

 

dynos can put out inflated numbers.

 

With that head/cam combo 400HP+ is not out of line.

 

Yes,those heads on a 350 with milder cams and 9.5 compression make 375 HP and 400 ft lbs of torque.

 

sounds cool - early Vette 327 factory rated at 365HP

 

Cool I luv the 327 best small block IMO.

 

Nice.
The 1964 Corvette featured 4 verisons of its 327 cubic inch engines including a fuel injected 327 ci with 375 hp:
327 ci 250 hp base engine
327 ci 300 (L75)
327 ci 350 (L76)
327 ci 375 (L84) FI

 

I've owned all brands, all sizes of engines, and my favorite, by far, was a .040 over '66 327 in a '53 Ford F-100. 350 horse Chevrolet hydraulic cam, 2.02 heads with screw-in studs, Edelbrock TM-1 intake, Holley carb. With a turbo 400 tranny and 3.92 rear gears (stock '53 Ford with welded spiders), it would spin the tires in all three gears and still get over 18 mpg on highway when I drove it right. Love 327s!

 

Possibly the BEST SBC.... ever?

 

X2, as much as I love the 327, the "Perfect Square" is not enough to keep it at the top today.

 

Boy....a lot of folks are just so jealous of the power and speed and gas mileage that a 327 can produce.

I know the one in my vette is over 400 hp and it had a stock rebuild in 84....and the fact that Banjo Matthews shop balanced it years ago...it spins real smooth and extremely fast....11:15 compression ratio by the way.