are B16 and B18 pistons the same size?

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Jan 21, 2003 | 12:24 AM

turbohf

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From: Marysville, WA, USA

are B16 and B18 pistons the same size?

are the pistons the same bore? and will a B16 piston bolt to a LS rod or the other way around??? thanks...

Jan 21, 2003 | 12:56 AM

RenoRacing

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From: Biggest Little City

Re: are B16 and B18 pistons the same size? (turbohf)

yes, yeah, yes

Jan 21, 2003 | 01:13 AM

turbohf

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From: Marysville, WA, USA

Re: are B16 and B18 pistons the same size? (HavokRacing)

thank you! to the point with no BS i like that!

Jan 21, 2003 | 02:37 AM

BudaKai

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From: You wish I was..., USA

Re: are B16 and B18 pistons the same size? (turbohf)

The domes are different though...

Jan 21, 2003 | 08:35 AM

martini

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From: Bellingham, WA, USA

Re: are B16 and B18 pistons the same size? (tzsir)

valve reliefs are different as well. LS valve reliefs are smaller.

Jan 21, 2003 | 12:25 PM

RenoRacing

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From: Biggest Little City

Re: are B16 and B18 pistons the same size? (martini)

no problem, i had to reply before someone was an *** about it and put "try the search button newbie" lol

Jan 21, 2003 | 12:27 PM

turbohf

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From: Marysville, WA, USA

Re: are B16 and B18 pistons the same size? (martini)

ok so the REALLY question is: can i put LS/PR4 pistons in a 1st gen B16???? and does anyone know the aprox compression ratio? thanks

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Jan 21, 2003 | 12:29 PM

sgT

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From: WI

Re: are B16 and B18 pistons the same size? (turbohf)

you CAN.
the valve reliefs would have to be enlarged and the resulting CR would be
somewhere around 9:1

Jan 21, 2003 | 12:35 PM

turbohf

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From: Marysville, WA, USA

Re: are B16 and B18 pistons the same size? (sgT)

damn so i really have to have them inlarged? how much should that cost?

Jan 29, 2003 | 04:23 PM

#10

V3locity

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From: greenville, SC, USA

Re: are B16 and B18 pistons the same size? (turbohf)

for an accurate CR, go to
http://www.c-speedracing.com/howto/c...c/compcalc.php

[Modified by illdezignzls, 8:23 PM 1/29/2003]

Jan 29, 2003 | 05:43 PM

#11

turbohf

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From: Marysville, WA, USA

Re: are B16 and B18 pistons the same size? (illdezignzls)

yeah found that...8.6:1....

Jan 29, 2003 | 07:21 PM

#12

sslude

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Re: are B16 and B18 pistons the same size? (turbohf)

nice compression ratio for a turbo...mmmmm

Jan 29, 2003 | 07:41 PM

#13

Kataku2K3

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From: Gresham, Oregon, USA

Re: are B16 and B18 pistons the same size? (sslude)

Why would you want to do this?? I'm just curious... If you are building a motor for boost and you are pulling the motor apart why not just go with some forged slugs... They'll take it a lot better... If you are building an NA motor then I would look into OE PCT slugs... Being that you have a B16A it's not going to bump your C/R like they would in a B18A/B/C but they are the highest compression OE piston... Good Luck with whatever route you take.. Latez