sr20det headgasket - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

garagelu · 06-13-2007, 07:31 AM

If you are try to go with a 88.5 bore gasket on a stock sr 86mm bore that way too much of a gap. Usually you only go .5 up. If you have a 86 bore, just buy a 86 mm bore gasket. Usually only people who overbore thier cylinders go to a 87 mm gasket. 87 mm would be ok for stock bore but i dont know if I would feel comfortable going to an 88.5 mm gasket.

06-13-2007, 07:31 AM	#4
garagelu Nissanaholic! Join Date: Aug 2005 Location: Atlanta, GA Age: 40 Posts: 1,856 Trader Rating: (60) Feedback Score: 60 reviews	If you are try to go with a 88.5 bore gasket on a stock sr 86mm bore that way too much of a gap. Usually you only go .5 up. If you have a 86 bore, just buy a 86 mm bore gasket. Usually only people who overbore thier cylinders go to a 87 mm gasket. 87 mm would be ok for stock bore but i dont know if I would feel comfortable going to an 88.5 mm gasket.