got a new problem

[s19243h]

"A .030 over 400 block is finished, right there, if you're trying to build any compression. Bore it .060 and you're going to have cylinder wall problems, including cracks."

Back in the day of junkyard part sprint car racing, Dad's friends were grabbing up every 400 SBC they could find.

Just to see what could be done, they took a .030 over 400 out of the car and took it to the max boring and stroking and relieving it until they could go no further. IIRC, they ended up with something like 477 CI. It ran AWESOME for about four laps and then went boom. I forgot who was driving it, but I do remember they described it as "CRISP!"

Now back to your regularly scheduled programming.

I had a 305, gave it to a friend to use in his 30 Ford sedan.
Gave it away, just needed a carb.

Yea this one was giving to me too freshened up the bottom end and put it in the car

 

[s19243h]

Clean up the new head no cracks anywere put my springs on it fired the motor 10 last nite and drove it home no problems i even drove it to work today

 

[Keeper]

Clean up the new head no cracks anywere put my springs on it fired the motor 10 last nite and drove it home no problems i even drove it to work today

Excellent, glad you got it sorted out. From the sounds of it, not to expensive either.

 

[Mike]

Yessir, I'm happy to hear you're back on the road again.

 

[s19243h]

me too guys i love driving that car :kiltdance:

 

[Screaming Metal]

"A .030 over 400 block is finished, right there, if you're trying to build any compression. Bore it .060 and you're going to have cylinder wall problems, including cracks." Back in the day of junkyard part sprint car racing, Dad's friends were grabbing up every 400 SBC they could find. Just to see what could be done, they took a .030 over 400 out of the car and took it to the max boring and stroking and relieving it until they could go no further. IIRC, they ended up with something like 477 CI. It ran AWESOME for about four laps and then went boom. I forgot who was driving it, but I do remember they described it as "CRISP!" Now back to your regularly scheduled programming. I had a 305, gave it to a friend to use in his 30 Ford sedan. Gave it away, just needed a carb.

Yep, those were the good ole days! The outlaw specials! Ran them on alky! 377's I wish I had a $20 for everyone I built!!!!!! Ultradyne cam, BME Alum. rods, Crane roller rockers, Jomar Bars....good heads, angle plugs w/2.050's, Scorpion intake. We collected the 400 blocks and if one was done to .060, we'd sleeve it, it'd last a few races and we'd change her out!

Right about the time I figured how to make the motors live more than 3 races (its in the rods), we started going with other combos.......