Quote:
Originally Posted by ponyakr
Still would not use the original 400 block.
Would go with either a 455 block or a 400 block with all 5 motor mount bolt holes. But NOT a "557" block.
You can put an electric choke on most any carb, including a Q-jet.
Butler sells a ready to assemble short block kit. They supply the machined block. Have to add over $500 to get a forged crank. I'd go with a stock 455 crank before I'd use a cast Chinese crank. But if you use a 455 crank, you'll have to use either a 455 or 428 block.
https://butlerperformance.com/i-3164...tegory:1459600
Looks like they've had a recent price increase. Looks like going the Butler route, plus alum heads, it's gonna take nearly 10 grand to build your complete running engine, unless you know some cost saving corners you could cut. Is that within your budget ?
Since you live in NJ, you may wanna check with Richie Hoffman. He's built lots of strong Pontiac engines. I think he's on Long Island. He's a member here. |
The Butler short block kit looks pretty tempting. 10K would be the upper limit of my budget,. Am I correct in thinking that no matter which route I go, I want to keep the CR around 10.25 (with alum heads)?
This is probably a question for the Firebird forum, but would I also need to think about getting frame connectors if I put that much torque into my '70 Trans Am?