L98 - Lt1 head swap

Lumpy

New Member
Hello,
Can anyone answer?
89 L98 corvette is it possible to install a set of LT 1 heads? Concerns; reversed coolant flow of heads......TPI intake alignment......anything else?
Price was right(FREE) so I thought I'd get some info.
Casting # 10128374
 
the lt1 heads will bolt on, too a standard sbc block, BUT the coolant passages are not an exact match, and theres no coolant ports in the LT1 heads too feed coolant too the intake manifold and radiator
81+YPOTqwsL._AC_UY218_.jpg
511UWJq1otL._SX377_BO1,204,203,200_.jpg

READ THE LINKS AND SUB LINKS


http://www.enginebuildermag.com/1999/09/rebuilding-the-chevrolet-lt1-engine-2/

http://garage.grumpysperformance.com/index.php?threads/lt1-cooling-info.2538/

http://garage.grumpysperformance.co...nvert-gen-i-sbc-to-reverse-flow-cooling.6099/

http://garage.grumpysperformance.co...-engine-parts-differences-useful-links.13141/



LT1 HEADS
p34413_image_large.jpg

theres no coolant flowing through the LT1/LT4 intake manifold, so you can,t bolt the standard SBC intake too the LT1 heads and get coolant flow back too the radiator, you can,t bolt an LT1 water pump too an earlier first gen SBC as the block and way the pump is driven is totally different, the LT1 water pump is driven bye a camshaft splined drive
on an LT1 coolant enters and exits the block through the water pump passages and the blocks not interchangeable with the more common first gen 1955-1991 SBC

http://www.chevyhardcore.com/news/r...s-changing-your-small-block-worth-the-effort/

lt1asd.jpg

lt1coold.jpg


LT1 water pump
lt1_water_pumps.jpg


lt4.jpg


corp_0809_08_z+1994_chevrolet_corvette_coupe+v8_lt1_engine.jpg

LT1/LT4
Corvette-LT1-engine-DSC_0083_a.jpg


L98
l98vette.jpg
 
Last edited:
Back
Top