Meanings
nounlong block (plural long blocks)
plural long blocks
- automotiveAn engine subassembly that consists of the assembled short block, plus the crankshaft, cylinder head, camshaft (usually), and valve train.
Origin
From the larger size of the engine block assembly compared to a short block.
Full word history & related roots →Cite this entry
APA
long block. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/long%20block
MLA
“long block.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/long%20block. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “long block,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/long%20block.
Source: long block on Wiktionary, CC BY-SA 4.0.