aziroc

a 427 or a 383? cause i have found ways to get the 383 to get 530-540 hp.. but im wondering if the enginewill get to hit because off all that hp, and if a 427 would be easier *cooling wise*. there is a 427/435 hp froma '67 vette for sale for $2000 in the paper that im thinking of picking up instead of a 350 and getting it bored to a 383... but can i still have FI/TPI on a 427??

AlkyIROC

Easier and cost wise is the big block. Typical engines can produce 1 HP per CID. The larger the engine, the easier it is to get high HP. You need to spend a lot of money building a 383 to get over 500 HP but a 454 only takes a mild build-up to get the same results.

Since the 427 is a big block, there's nothing that you can use from the 350 except motor mounts, starter, distributor, alternator. You'll need all the accessory brackets for the big block. Water pump, balancer, flexplate, exhaust, intake etc.

If you want to run FL/TPI, you need to buy a complete aftermarket system.

HP builds heat and an upgrade to your factory cooling system will be needed.

------------------
Follow my racing progress on Stephen's racing page
and check out the race car

87 IROC-Z Pro ET Bracket Race Car
383 stroker (carbed) with double hump cast iron heads and pump gas
454 Big Block almost ready for the 2001 racing season

Best results before the 383 blew up
Best ET on a time slip: 11.857 altitude corrected to 11.163
Best MPH on a time slip: 117.87 altitude corrected to 126.10
Altitude corrected rear wheel HP based on power to weight ratio: 476.5
Best 60 foot: 1.662

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association

87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley

aziroc

ok.. im thinking 427 now.. how are those with nos? cause i want to add 200 hp nos to it also. im sure most of it is how well i build the engine. well i was going to get the Mini ram for the 383 project... they make minirams for Big Blocks?

jms

iTrader: (1)

If the big block you are talking about is indeed a 435 horse 427 from a '67 Vette, it could be worth a closer look. Head over to one of the 'Vette boards and get more info, especially on casting numbers. A true 435 horse 427 should have a 4 bolt block, steel crank, dot rods, rectangle port-closed chamber heads, decent cam, decent compression pistons, aluminum intake, etc. You could sell it to a restorer and make a pretty good profit or EASILY build a streetable 600 horse motor without spending a whole lot more, if the engine is in decent shape. Easily.
jms

406 S10 Man

iTrader: (1)

if that is really a 427/435, which i doubt, go buy it right now. unless it has severe damage to it, corvette guys will pay huge money for it. restoration buffs pay tons of money for the right date code on their motors.

------------------
88 S10
Dropped 3/4
Dart equipped 406
12.20 @ 115.25 mph

88 427 Camaro

A numbers matching '67 427 435hp is worth a lot more than $2000! I'll trade you my 500hp 427 for that motor.

Miles

------------------
88 427 Camaro
12.18 @ 113mph 1.75 60ft

www.koolmeister.com