From The Drive · Stephen Edelstein · · 40s
Temu Heads Are Worse Than You Think
Temu's cheap GM Vortec cylinder heads have flawed design that won't boost engine performance.
In brief
Temu's cheap GM Vortec cylinder heads have flawed design that won't boost engine performance. Temu's $350 Vortec-style cylinder heads have distorted combustion chambers and poor flow, making them unsafe for small-block Chevys. Originally reported by The Drive.
Temu's Cheap Heads
Temu sells low-cost, low-quality GM Vortec cylinder heads for $350 assembled and shipped.
Distorted Combustion Chambers
The combustion chambers are distorted into a heart shape instead of round, reducing performance.
Poor Flow Test Results
Only the exhaust side passed a vacuum test; intake valves lacked back cuts and had sharp angles.
Why This Matters
These heads won't boost engine performance and are unsafe for non-Vortec small-block Chevys.
The bottom line
Temu's $350 Vortec-style cylinder heads have distorted combustion chambers and poor flow, making them unsafe for small-block Chevys.
