682gold

I have spoken to a lot of engine builders and a lot of them are hot on a built 496 that can make 620-650HP. I can get a 540 to make that as well. It seems you can make a very strong 496 for less money than a 540 that is making the same HP. Would a 496 be a better choice or a 540? I am going to repower my 2000 38' small step Lightning and would like to hear opinions and first hand experiences of either and both engines.

Rookie

It depends on if you are starting with 454's or 502's. There should not be a difference in price they are both 4.25" stroker kits just different bore diameters. If you're buying new blocks then it is no brainer and go with 540's.

CDShack

There's no replacement for displacement. Never heard any boater say, "Dang, I wish my engine was smaller!" LOL!

FIXX

the only price differance should be in piston cost..

Borgie

Yeah but as referenced above, if he already has a 454(s), then financially speaking, a 496 could make a lot more sense than a 540. Obviously money not being an issue, a 540 would be optimal. Be interesting to see if he has a 454 or 502...

bcfountain

they by far more 454 blocks than 502 blocks and the 454 is cheaper to buy at swap shops and used parts guys.i just went through this on my 10meter build.it had 454,s that were played and I had 4 other 454 blocks......it was a no brainer for me.although said.no replacement for cubic displacement.i would had rather had 502,s.but the 454,s fit my budget.

Budman II

Larger bore would help to unshroud the valves and help the 540 to breathe a little better. Heads, carb, and cam need to be sized appropriately for the larger engine too.

682gold

Currently I have 525SC's. 454 w/ a 177 blower. I feel I could get more for the whole thing kept together than parting in out. I would keep my (manifolds) exhaust, oil coolers, power steering pump and alternators. Sell everything else pan to carb. Put that money towards a build.

Rookie

Screw stroking it and get a bigger blower. 420, 6-71

682gold

Trying to get away from blower motors if I can. What, in your opinion, makes more sense to put bugger blowers on it than to sell and go with N/A motors?