This job always need a fair bit of machine work. When going from 1.6L (1588cc) to 1.8/2.0 L (1839.6cc/1980.3cc)of displacement the engine head will be trying to fill more space in each of the cylinders. Supertech 4age 20v +1mm Oversize valve set. $178.49. 16V 4age Smallport - Piston set 81.5mm (+0.5) $ 320.00. New Supertech Performance SS 1mm Oversize Valves. Nov 16, 2010. We are the leading manufacturer for high performance valves, pistons, springs and valve train engine components. atlantic spec = crap … Toyota 17173-16030 . Supertech +1mm Oversize Valves Set Fits Jdm Toyota 4age 20v Black And Silver Top. I have use supra valves 1mm oversized and other custom made 1,5 mm oversized. With this system the intake camshaft could be rotated slightly to alter the overlap between the intake and exhaust valves. Diam Length Black Nitrided Head Diam Stem. View Details. View Details. Oversized intake valve for the 4AGE 20v. Fits: Toyota 4AGE 20V 1.6L Engines. Supertech Bronze Valve Guides For Jdm Toyota 4age 20v Black And Silver Top. Toyota 4AGE 20v Exhaust Racing valve 27.50 x 5.97 x 99.75mm / SS / Blk. BLACK NITRIDE: This is a hardening treatment that even though it is not widely used as the chrome coating, it has several benefits and is becoming very popular, mainly for European and Japanese applications. Supertech Performance offers high quality racing components, valves, pistons, spring and valve train engine components for the automotive industry. Toyota 17173-16030 Oem Mls Exhaust Manifold Gasket 4age 20v Black Silver Top 4a. 8-Exhaust Valves -- Black Nitrite Coated SS (TEVN-1018) 27.0mm . VALVE GUIDES: INTAKE: GDE-4AGE-SM + VS-T6SM: EXHAUST: GDE-4AGE-SM + VS-T6SM: VALVE SEALS: INTAKE: VS-TS6-I: EXHAUST: VS-TS6-E: CAM FOLLOWERS: CF-28/3.85+ TOYOTA 4AGE 20v SILVER TOP or BLACK TOP; INTAKE VALVE Part Number EXHAUST VALVE Part Number; Head Diam Stem. Continue to see more comparison pictures among the pistons. In Stock. Supertech Intake/Exhaust Valve Guide - Single | Toyota 4AGE 16v (GDE-T4AGE-SM) No Reviews. The article compare the conrods, pistons, from the 4AGE 20V blacktop, 4AGE 20V silvertop and TODA 4AGE 20V stroker kit. 12-Intake Valves -- Black Nitrite Coated SS (TIVN-1018) 27.5mm. the restriction in the silvertop is the ports not the valve. Source: ToySpeed by KinLoud. Toyota Corolla 4AGE 20v Engines . TRD never did os valves for the 20v, and you dont need them. Suit both Silvertop & Blacktop (12x Intake Valves, 8x Exhaust Valves) A direct install of these valves with the correct seat cutting will instantly net 6cfm flow gain on the intake and 15cfm on the exhaust with no other mods. Complete Supertech Black Nitride Intake and Exhaust Valve Set, Oversized, for the 4AGE-16v, Corolla £344.20 inc. VAT Add to basket #2. there is no direct fit oversize valves for the 4e head. No Reviews. Nitrided / + 2mm. Diam … Re: 4A-GE 20v oversize valves. Toyota also used a very early form of its VVT (variable Valve Timing) system on the intake camshaft. Supertech Bronze . The TODA 4AGE 20V stroker kit able to increase the engine capacity from 1.6L to 1.7L. $367.49. And where the earlier variants of the 4A-GE were already pretty rev happy, the 20V engines trumped them there. STAINLESS STEEL ALLOYS: $ 12.00. J160 gearbox- Front oil seal. either port the exhaust ports, or use a black top head. On the 16v head you might want to go with 1mm bigger valves and/or bigger cams. Supertech Titanium Retainer | 1992-1995 Toyota Corolla 4AGE (RET-TC50/T1) No Reviews. 16V 4age - Valve collet. Another way to flow more air into the bigger cylinders would be to use a 4age 20v head. 12 Intake and 8 Exhaust .
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