block question
#1
Racer
Thread Starter
block question
When I bought my 76 we decide to build a new engine and swap it out so I could still use the car . We used either 74 or a 78 block from a chevy pickup . Is that good or bad ?
#2
Dr. Detroit
Member Since: Mar 2012
Location: New Braunfels Texas
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Just as good if not better than the block that was in the car originally.......it is fine.
FYI.....Truck crankshafts of that era were cast but were a stronger nodular iron casting.....this can be denoted by a "NT" cast into the counter weight. Damn good crankshft....I have put 8-9psi blower boost at one with no issues on a studded 2 bolt 78 model block
Jebby
FYI.....Truck crankshafts of that era were cast but were a stronger nodular iron casting.....this can be denoted by a "NT" cast into the counter weight. Damn good crankshft....I have put 8-9psi blower boost at one with no issues on a studded 2 bolt 78 model block
Jebby
#3
Team Owner
Member Since: Oct 2004
Location: altered state
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St. Jude Donor '05
Hmm didnt know that
A block is a block. Have your machinist look it over go from there.
A block is a block. Have your machinist look it over go from there.
#4
Le Mans Master
Member Since: Sep 2001
Location: Unreconstructed, South Carolina
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Some years ago a local Large scrap yard had an ongoing agreement where they got retired school buses with sbc. All motors were greasy-red & had 4 bolt main, 2 piece rear seal and Forged crank. This wasn't a junkyard where they typically sold parts but typically only a scrap crush-recycle plant. But the yard owner campaigned a circletrack supertruck so those buses became a welcome motor resource for his team and others'. May God always bless and keep the late Don Brewer.
#6
Le Mans Master
Unless you're planning on pounding the beejeebers out of it with 6000+ RPM all the time, a 2 bolt block with good internals will be fine. Even then, chances are if it's good to start with, it won't cause you any problem.