Stock headbolts will stretch faster than you can damage a headgasket. Headgaskets blow partially because the head lifts allowing them to be directly affected by pressure during the combustion cycle.
Originally Posted by Cliff Stock headbolts will stretch faster than you can damage a headgasket. Headgaskets blow partially because the head lifts allowing them to be directly affected by pressure during the combustion cycle.
bingo.
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1991 NX - Stalking Horse - mild bolt-ons
1993 Sentra - my freinds 4 door SE-R VVL USDM Tsuru Sunny Supersaloon conversion in progress
2011 Forester XT - DD
"Everybody's got a plan... and then I punch them in the mouth." Mike Tyson
yep, headbolts will give before the gasket if done right. Just ask JP, with his bone stock ve made upper 500whp on stock motor before the head finally started to lift causing the gasket to blow out.
Get a good set of headstuds and metal gasket. Install it properly and happy boosting.
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1992 Nissan Sentra SE-R - Fully Built SR20VE, BWS400SX Billet 67mm and much more
JMS Racing tuned to 716whp, 423wtq at 29psi
10.5 @ 149.2mph to date I believe the fastest trap speed SE-R, Much more to come with some changes!