427 Cam Choice
Thread Starter
Drifting
Joined: Mar 1999
Posts: 1,381
Likes: 15
From: Lusby MD
427 Cam Choice
I'm finally getting to rebuilding the 427/435 HP motor in my vette. The motor is virtually identical to an LS-6 Chevelle motor with the obvious exceptions of shorter stroke and tripower. I'm using the factory rect. port heads and factory tri-power intake, but using Hooker Super Comp headers. Compression is around 9.7 down from the original 11.0. The car has an M-21 and a 4.11 rear.
I toyed with going to a Comp Cams XE274 hydraulic cam but recently balked at the idea. I love the HIPO chatter of the original solid lifters so I decided to stay that route. However, I want to gain some of the benefits of 35 years of cam technology. The two cams I'm narrowed it down to are:
Comp Cams LS-6 Plus (OEM-type with new-tech lobes)
239/246 @ .050 and .544/.539 lift
Or a Xtreme Energy solid
230/236 @ .050 and .553/.568 lift
This is gonna be a weekend fun car that will be 90% cruiser (yeah, right... with 4.11s), and 10% weekend warrior. It will see a little track time but certainly won't be a bracket car.
For reference sake, the LS-6/L71 cam was
242/242 @ .050 and .520/.520 lift
Any comments or suggestions?
[Modified by 69L71, 11:22 PM 10/17/2001]
I toyed with going to a Comp Cams XE274 hydraulic cam but recently balked at the idea. I love the HIPO chatter of the original solid lifters so I decided to stay that route. However, I want to gain some of the benefits of 35 years of cam technology. The two cams I'm narrowed it down to are:
Comp Cams LS-6 Plus (OEM-type with new-tech lobes)
239/246 @ .050 and .544/.539 lift
Or a Xtreme Energy solid
230/236 @ .050 and .553/.568 lift
This is gonna be a weekend fun car that will be 90% cruiser (yeah, right... with 4.11s), and 10% weekend warrior. It will see a little track time but certainly won't be a bracket car.
For reference sake, the LS-6/L71 cam was
242/242 @ .050 and .520/.520 lift
Any comments or suggestions?
[Modified by 69L71, 11:22 PM 10/17/2001]
Le Mans Master
Joined: Oct 2000
Posts: 6,209
Likes: 33
From: Texas-out west
Re: 427 Cam Choice (71DropTop)
I would stay with crane OEM stocker, but given you want new tech ( not always better) I would go with choice number 2. I have turned my 435 car to 7000 big ones many times and no problems. This is chevys finest in my opinion. BIG BLOCKS RULE :D :D :D :cool:
