bbc 454
Thread Starter
Racer
Joined: Nov 2007
Posts: 350
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From: coon rapids mn
bbc 454
I just got my hands on a 454 that I am thinking of putting in my vette but want to do some work to first. the motor is rebuilt and has very little miles on it. the heads are 290 casting with small valves this is were I need some help. would like to put bigger valves and and bowl work to get a little more out of them and change cam it has a flat tappet lunati in it right now I want to go with a roller. any advise is welcome
Le Mans Master
Joined: Oct 2006
Posts: 7,123
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From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
So many options!! Big blocks like air. Find a pair of big valve heads- there are lots of them out there. I'd bet that by the time you modded your heads with bigger valves and had the ports done you'd have paid for better ones up front. My choice is aluminum, but not a thing wrong with iron either. Summit and Jegs both have BBC top end kits. Hydraulic roller cam and you're off and running.
Thread Starter
Racer
Joined: Nov 2007
Posts: 350
Likes: 0
From: coon rapids mn
found a local shop to cut in new seats bigger valves and clean up the bowl area for a fair price. my question is I want to run a roller cam with .600 or more lift should I get longer valves than stock ? keep in mind I have zero into this motor right now so spending on the valve train to wake it up is no big deal! something like this is what iam thinking.LUNATI PART #40110732
Le Mans Master
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
A solid roller? I'd talk to Chris Straub. You'll need to make sure you get lifters that will live on the street too.
From some of the reading I've been doing, the 496 engines seem to like a 108* centerline. It may be the 454 likes a little wider.
Make sure you match the springs to the cam.
From some of the reading I've been doing, the 496 engines seem to like a 108* centerline. It may be the 454 likes a little wider.
Make sure you match the springs to the cam.
