I have a pair of 454's bored 30 over with under 100 hours. Holley carbs, Thunderbolt iginition, High performace roller rocker heads.

Looking to go with some bigger power but want to gauge what these are worth.

Going to need allot more information. List parts, cam profile, who did the work, year, etc

Their worth what someone in need of 2 454s is willin to pay! What their worth and and how bad you want to get rid of them is going to be 2 different numbers. Especially this time of year! Good luck with your sale!

What did these two 454's start as .what heads.forged or cast crank ????Which rods / pistons/ ....are they stock?

I am looking for a pair of 454's over the winter.I live near STL.
Can they be ran ?
HP ?
Exhaust ?
Who did the work ?
Price ?

Thanks